Spleen size calculator
Author: t | 2025-04-24
The size of the spleen is determined by sex, age and height. We recommend using this calculator to determine the expected spleen size: Calculate by QxMD: Expected spleen size. Mild
Pediatric Spleen Size Percentile Calculator
A mild to moderate fever is another common mono symptom. Your healthcare provider will most likely recommend giving your child acetaminophen or ibuprofen to manage the fever and discomfort. Fatigue: While most mono symptoms last two to four weeks, the fatigue can linger for weeks to months. If your child is so tired that they no longer want to get out of bed or eat meals, talk with your practitioner.Sore throat: Most children with mono report a sore throat. This may be due to swelling of the lymph nodes and tonsils, making swallowing painful. Body aches: It’s common for children and teens to experience muscle aches with mono. Encourage rest, liquids, and pain medicine if needed. Loss of appetite: Many children lose their appetite when they are ill with mono. This could be due to fatigue or painful swallowing. Encourage your child to drink as much fluid as possible to prevent dehydration.Enlarged spleen: It’s common for children and teens with mono to have an enlarged spleen during the illness. When the spleen is enlarged, it may start to filter out normal red blood cells and platelets, leading to their low levels in the blood. In most cases, the spleen returns to its normal size on its own.Swollen liver: It’s possible for children with mono to have a mildly inflamed liver. This usually resolves on its own once they start feeling better. If you notice a yellowing of your child’s eyes or skin, known as jaundice, call your healthcare provider. How Long Is Mono Contagious in Kids? A child with mono can spread the infection to others for as long as they are having symptoms. That means they could be contagious for weeks if not months. They might also be able to keep spreading the virus after they get better, but
23 spleen size calculator - AreebAnnelie
To parasites? Because of intense competition for access to mates. Immunosuppression due to the negative effects of androgenson immune function. Møller et al. (2004) analyzed covariationbetween relative size of immune defense organs and brain in birds. Therelative size of the bursa of Fabricius and the spleen in adults covariedpositively with relative brain size across species, and the relationshipbetween immune defense and brain size was stronger for males. Thus, speciesin which males have relatively large brains also have relatively largeimmune defense organs. These findings support the hypothesisthat sex differences in brain function have evolved as a consequence ofdifferences in susceptibility to parasitism. Different components of theimmune system (bursa and spleen) may have evolved to mitigate the negativeimpact of parasites on brain function. Covariation between relative brain mass of juvenile birdsand relative mass of bursa of Fabricius in different bird species. Relativemass was calculated as residuals from a phylogenetically corrected regressionof log10-transformed organ mass on log10-transformed body mass. The linesare the linear regression lines for males and females, respectively (From:Møller et al. 2004).B-lymphocytes, the cells that produce antibodies, are initially producedin the embryonic liver, yolk sac and bone marrow, then move through theblood to the bursa of Fabricius (BF). Birds have a bursa of Fabricius (BF), which is an outpocketingof cloaca. Within the BF, B-lymphocytes mature then migrate to otherbody tissues. The bursa is a blind sac that extends from the dorsal sideof the cloaca, the common portal of the reproductive, urinary, and digestivesystems. Within the bursas of young birds are extensive20 spleen size calculator - NadiahLeeha
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Lymphoid System Splen Read moreQuick FactsLocation: Left epigastric region of abdomen.Arterial Supply: Splenic artery.Venous Drainage: Splenic vein.Innervation: Sympathetic: postganglionic fibers from the celiac ganglion; Parasympathetic: preganglionic fibers from vagal trunks.Lymphatic Drainage: Splenic nodes > superior pancreatic nodes > celiac nodes > intestinal trunk > cisterna chyli > thoracic duct.Related parts of the anatomyStructureThe spleen is classified as a secondary lymph organ and is the largest lymph organ in the body. It has a convex, smooth lateral or external surface. A sharp border, notched anteriorly, separates this surface from the concave medial or internal surface. The later forms the hilum for the entry of neural, vascular, and lymphatics to the organ. The hilum is surrounded by impressions left by other abdominal organs to which it is closely related.Anatomical RelationsThe spleen is located in the left epigastric region of the abdomen. The lateral surface of the spleen lies just inferior to the far-left side of the diaphragm, just medial to the left costodiaphragmatic recess. The impressions on its medial surface are formed superiorly by the fundus of the stomach, inferiorly by the left colic flexure (hence its alternate name “splenic flexure”), and posteriorly by the superior pole of the kidney and its surrounding perirenal fat pad. The very distal end of the tail of the pancreas is also very closely related to the medial surface of the spleen, at the hilum.A mnemonic that helps in recalling the metrics of the spleen is the 1x3x5x7x9x11 rule. This rule describes the spleen as being 1" thick, 3" wide by 5" long, weighs around 7 oz (200 grams), and lies between the 9th and 11th ribs.FunctionThe functions of the spleen are many and still incompletely understood. It is primarily an organ of the immune system and as such plays an important role in immunological defense. It is also known to be involved in metabolism and maintenance of some components of the blood.Arterial SupplyThe splenic artery, one of the three primary branches of the celiac trunk, provides the arterial supply to the spleen.Venous DrainageThe splenic vein drains the spleen. It typically joins the inferior mesenteric vein just before it merges with the superior mesenteric vein to form the portal vein.InnervationThe spleen is innervated by both divisions of the autonomic nervous system that forms a plexus around its vasculature. This plexus includes postganglionic sympathetic fibers originating in the celiac ganglion and preganglionic parasympathetics from the vagal trunks.Lymphatic DrainageLymphatics travel with blood vessels collecting into a plexus that drains into lymph nodes of the splenic hilum and pancreatic tail. From here, lymph drains to superior pancreatic nodes, as well as inferior pancreatic and left gastroomental lymph nodes, eventually draining into celiac nodes and the cisterna chyli (Földi et23 spleen size calculator - JacksonHeath
Is part of your bone tissue or your bone marrow or heart tissue or liver or spleen, if light can access those cells, it will change the way that those cells function for better or for worse. For many organs within our body that reside deep to our skin, light never arrives at those cells. A really good example of this that we'll touch on later is the spleen. Unless you have massive damage to your body surface, unless you literally have a hole in your body, light will never land directly on your spleen. But the spleen still responds to light information through indirect pathways, and those indirect pathways arise through light arriving on the skin and light arriving on the eyes.Andrew Huberman:So a key principle that I'm going to return to again and again today is that the ways in which light can impact the biology of your organelles, your cells, your organs, and the tissues and, indeed, your whole body, can either be direct — so for instance, light onto your skin impacting skin or light onto your photoreceptors impacting the photoreceptors of your eye — or it can be indirect; it can be light arriving on your photoreceptors, the photoreceptors then informing another cell type, which informs another cell type, which then relays a signal in kind of a bucket brigade manner off to the spleen and says to the spleen, "Hey, there's a lot of UV light out here. We're actually under stress. In fact, there's so much UV light that you need to activate an immune program to protect the skin." And in response to that, the spleen can deploy certain signals in certain cell types to go out and start repairing skin that's being damaged by UV light.Andrew Huberman:So we have direct signals and we have indirect signals, but in every case, it starts with light of particular wavelengths being absorbed by particular pigments or properties of the surfaces that those light waves land on. And as you recall from our discussion about the physics of light, remember, it's not just about light impinging on the surface of your body. Light can actually penetrate deep to the skin and access at least certain tissues and cells of your body. Even though you can't see those wavelengths of light, they are getting into you all the time.Andrew Huberman:So perhaps the best way to wrap this discussion about the physics and the biology of light with a bit of a bow is to think about light as a transducer, meaning a communicator of what's going on in the environment around you, and that some of those signals are arriving at the surface and impacting thePediatric Spleen Size Percentile Calculator - radiology
| Size: 0.28 MB Casio FX-61F SCIENTIFIC CALCULATOR Manual (45 pages) Scientific calculator Brand: Casio | Category: Calculator | Size: 2.49 MB Radio Shack 65-115 - Scientific Calculator Owner's Manual (44 pages) Dual-powered scientific calculator Brand: Radio Shack | Category: Calculator | Size: 1.24 MB Sharp Scientific calculator User Manual (35 pages) Scientific calculator Key Layout Display Format and Decimal Setting Function Fractional Calculations Statistics Functions Brand: Sharp | Category: Calculator | Size: 1.4 MB Texas Instruments TI-34 - MultiView Scientific Calculator User Manual (15 pages) Scientific calculator Contents Basic Operations Fractions Powers and Roots Logarithmic Functions Trigonometric Functions Statistics In Case of Difficulty Brand: Texas Instruments | Category: Calculator | Size: 0.73 MB Sharp EL506WBBK - Scientific Calculator Operation Manual (9 pages) Scientific calculator Scientific Calculations Initial Set up Display Random Function Memory Calculations Statistical Calculations Battery Replacement Manual is suitable for 1 more product: EL-506W Brand: Sharp | Category: Calculator | Size: 2.55 MB Sharp EL-531WBBK - Scientific Calculator, 10-Digit x LCD Operation Manual (8 pages) Scientific calculator Initial Setup Statistical Calculations Battery Replacement Specifications Error and Calculation Ranges Manual is suitable for 1 more product: EL-509W Brand: Sharp | Category: Calculator | Size: 3.09 MB Sharp EL506 - 10 Digit Scientific Calculator Operation Manual (1 page) Scientific calculator Manual is suitable for 1 more product: EL-506V Brand: Sharp | Category: Calculator | Size: 0.1 MB Hp 9g User Manual (87 pages) Graphing calculator Manual is suitable for 2 more products: F2222A#ABA - 9s Scientific Calculator113397 - 9G Scientific Calculator Table Of Contents | Brand: Hp | Category: Calculator | Size: 2.7 MB Casio 229-Function - FX-300MS Plus Scientific Calculator User Manual (2 pages) Casio calculator user manual Manual is suitable for 1 more product: FX-220 PLUS Brand: Casio | Category: Calculator | Size: 0.45 MB Hp F2216AHow accurate are ‘expected spleen size calculators’? - Reddit
The environment that we're in, needs to be communicated to the various organs of our body. Some of them have more direct access to what's going on outside. So, for instance, the cells in your brain that reside right over the roof of your mouth, your hypothalamus, they control hormone output and they control the biological functions that we call circadian functions, the one that change every 24 hours, well, those are just one or two connections, meaning synapses, away from those cells in your eye that perceive UVB light.Andrew Huberman:Other organs of your body, such as your spleen, which is involved in the creation of molecules and cells that combat infection, well, those are a long ways away from those cells in your eye and, in fact, they're a long ways away from your skin. There are beautiful studies showing that if we get more UVB exposure from sunlight or from appropriate artificial sources, that spleen and immune function are enhanced. And there's a very logical, well-established circuit as to how that happens. Your brain actually connects to your spleen. Now, it's not the case that you can simply think, "Okay, spleen. Turn on, release killer cells. Go out and combat infection." However, UVB light arriving on the eyes is known to trigger activation of the neurons within the so-called sympathetic nervous system.Andrew Huberman:These neurons are part of the larger thing that we call the autonomic nervous system, meaning it's below, or not accessible by, conscious control. It's the thing that controls your heartbeat, controls your breathing, and that also activates or flips on the switch of your immune system. When we get a lot of UVB light in our eyes, or I should say sufficient UVB light in our eyes, a particular channel, a particular set of connections within the sympathetic nervous system is activated, and our spleen deploys immune cells and molecules that scavenge for and combat infection. So if you've noticed that you get fewer colds and flus and other forms of illness in the summer months, part of that could be because of the increase in temperature in your environment, because typically longer days are associated with more warmth in your environment, as opposed to winter days, which are short and it tends to be colder out.Andrew Huberman:Well, that's true, but it's also the case the people around you have fewer colds and flus and that you will get infected with fewer colds and flus and other infections, because if those infections, whether or not they're bacterial or viral, arrive in your body, if you inhale them or they get into your mouth or on your skin, your spleen meets those infections with a greater. The size of the spleen is determined by sex, age and height. We recommend using this calculator to determine the expected spleen size: Calculate by QxMD: Expected spleen size. Mild Normal spleen size range for a given age, calculator of pediatric spleen length percentiles
Spleen size calculation ultrasound radiology medical - Facebook
And second toe. This point is associated with the liver and can help with detoxification and stress relief.KidneyLocated on the sole of the foot, just below the ball of the foot. This point is linked with the kidneys and can help with water retention and overall energy levels.SpleenLocated on the inner edge of the foot, just below the big toe. This point is associated with the spleen and can help with digestion and immune function.What Does Each Pressure Point Mean? So, what do these pressure points actually mean? Here's a quick breakdown:Solar PlexusThis point is all about digestion and gut health. By massaging this area, you can help stimulate the digestive system and alleviate bloating or discomfort.LiverThe liver is responsible for detoxification and filtering toxins from the body, and massaging this point can help support liver function and promote overall health.KidneyThe kidneys are essential for filtering waste and maintaining fluid balance in the body. Massaging the kidney point can help support kidney function and reduce water retention.SpleenThe spleen plays a key role in immune function and helps regulate blood flow, and massaging the spleen point can help boost immunity and promote overall wellness.Benefits of Each Pressure PointNow that we know what each pressure point means, let's talk about some of the specific benefits you can expect from massaging each one:Solar Plexus BenefitsBy massaging the solar plexus point, you can help:Alleviate bloating and gasStimulate digestionReduce stomach discomfortPromote overall gut healthLiver BenefitsMassaging the liver point can help:Support liver function and detoxificationReduce stress and tensionAlleviate headaches and migrainesPromote emotional well-beingKidney BenefitsFocusing on the kidney point during your foot massage can help:Support kidney function and waste removalReduce water retention and bloatingBoost energy levelsPromote overall balance and well-beingSpleen BenefitsGiving some love to the spleen point can help:Boost immune functionStimulate digestion and reduce bloatingRegulate blood flow and circulationPromote overall health and vitalityHow To Massage Foot Pressure PointsAlright, now that you know where the pressure points are and what they do, let's talk about how to actually massage them. First, use your thumb or the knuckle of your finger to apply firm, steady pressure to each point.Pediatric Spleen Size Percentile Calculator - Radiology Universe
Yin & Yang are opposite energies, yet they are interdependent and could not exist without the other.In Traditional Chinese Medicine (TCM), there is an organ clock that represents the time of the day when each organ is functioning optimally and has the most energy. There are 12 organ systems and 2 accessory systems that are represented by this clock. Each organ system is also associated with an emotion, taste, sense organ, season, etc. but this is beyond the scope of this article. Here we will discuss the physical and emotional symptoms that arise if an organ is out of balanced. But keep in mind that if some of the symptoms don’t make sense (ie. kidney imbalanced showing up as premature greying of hair), just know that TCM is a highly developed and intricate form of medicine that differs from Western medical diagnosis.Here is a brief discussion of the organ systems with their corresponding times, and how imbalances in these systems may arise both physically and emotionally.3-5am Lung: The lung is responsible for moving the qi (energy) through the meridians and to the entire body, as well as providing immune protection. It is also emotionally associated with grief. You may find that wake up during these times if you are struggling with grief or sorrow. Imbalances may also show up as wheezing, coughing, asthma, or getting sick easily.5-7am Large Intestine: This is the best time to have a bowel movement. The large intestine is all about ‘letting go’ physically and emotionally. Symptoms of malfunction include constipation, dry stools, skin rash, and feeling emotionally ‘stuck’ .7-9am Stomach: The stomach’s function is digestion & breakdown of foods, so this is the best time to eat a healthy & hearty breakfast. If out of balance, symptoms that may arise include acid reflux, stomach ulcer, and bad breath.9-11am Spleen: The spleen extracts nutrients from food, transforms it into energy and transports it to other organ systems. During this time, you can support the spleen by having a nice cup of warming tea, or a light snack. Foods that support the spleen include cinnamon, yam, dates, and lentils. Imbalances may show up as loose stools, bloating after meals, craving sweets, and low energy.11am-1pm Heart: During these hours, it is best to relax, take a siesta, and enjoy lunch. The heart dislikes heat (emotional & physical), so try to avoid caffeine, stress, intense exercise, or anything that raises your blood pressure. Symptoms of imbalance are palpitations, shortness of breath, cold hands & feet, and insomnia.1-3pm Small Intestine: The small intestine separates the clear and turbid fluids, and moves these to the urinary bladder and large intestine, respectively. If you haven’t drank enough water during the day, you are more likely to feel dehydrated during these times. When out of balance, conditions that may arise include duodenal ulcer, bloating with vomiting or gas.3-5pm Urinary Bladder: This is a time of the day when you can feel a dip in energy levels, especially if you are not well-hydrated. The. The size of the spleen is determined by sex, age and height. We recommend using this calculator to determine the expected spleen size: Calculate by QxMD: Expected spleen size. Mild Normal spleen size range for a given age, calculator of pediatric spleen length percentilesWhat is Spleen Size? - Answr
Scientific Calculator Precision 90 for scientists, engineers, teachers, and students. Calculates mathematical formulas of any length and complexity..File Name:ScientificCalculatorPrecision90.exe Author:TvalxLicense:Shareware ($40.00)File Size:2.6 MbRuns on:Win XP, ME, 2003, 2000, 98 Advertisement Advertisement File Name:ScientificCalculatorPrecision72.exe Author:TvalxLicense:Shareware ($30.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaScientific Calculator Precision 81 for scientists, engineers, teachers, and students. Calculates mathematical formulas of any length and complexity.File Name:ScientificCalculatorPrecision81.exe Author:TvalxLicense:Shareware ($35.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaFile Name:ScientificCalculatorPrecision54.exe Author:TvalxLicense:Shareware ($20.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaFile Name:CollegeScientificCalculator27.exe Author:TvalxLicense:Shareware ($11.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaFile Name:CollegeScientificCalculator36.exe Author:TvalxLicense:Shareware ($14.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaFile Name:CollegeScientificCalculator45.exe Author:TvalxLicense:Shareware ($17.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaFile Name:ScientificCalculatorPrecision63.exe Author:TvalxLicense:Shareware ($25.00)File Size:2.64 MbRuns on:Win98, WinME, Windows2000, WinXP, Windows2003, Windows VistaCompact Scientific Calculator 36 for scientists, engineers, teachers, and students. The calculator was designed with purpose to fit Netbooks and Notebooks with small display. Of course, the calculator can be used on laptop and desktop. ...File Name:CompactScientificCalculator36.exe Author:TvalxLicense:Shareware ($14.00)File Size:2.6 MbRuns on:Win XP, ME, 2003, 2000, 98Compact Scientific Calculator 45 for scientists, engineers, teachers, and students. The calculator was designed with purpose to fit Netbooks and Notebooks with small display. Of course, the calculator can be used on laptop and desktop. ...File Name:CompactScientificCalculator45.exe Author:TvalxLicense:Shareware ($17.00)File Size:2.6 MbRuns on:Win XP, ME, 2003, 2000, 98Scientific Calculator Precision 54 for scientists, engineers, teachers, and students. The calculator was designed with purpose to fit Netbooks and Notebooks with small display. Of course, the calculator can be used on laptop and desktop. ...File Name:CompactScientificCalculator54.exe Author:TvalxLicense:Shareware ($20.00)File Size:2.6 MbRuns on:Win XP, ME, 2003, 2000, 98Python Advanced Scientific Calculator is a simple and accessible tool that can perform various calculations.Python Advanced Scientific Calculator is an ongoing project, but it does feature more functions then yourComments
A mild to moderate fever is another common mono symptom. Your healthcare provider will most likely recommend giving your child acetaminophen or ibuprofen to manage the fever and discomfort. Fatigue: While most mono symptoms last two to four weeks, the fatigue can linger for weeks to months. If your child is so tired that they no longer want to get out of bed or eat meals, talk with your practitioner.Sore throat: Most children with mono report a sore throat. This may be due to swelling of the lymph nodes and tonsils, making swallowing painful. Body aches: It’s common for children and teens to experience muscle aches with mono. Encourage rest, liquids, and pain medicine if needed. Loss of appetite: Many children lose their appetite when they are ill with mono. This could be due to fatigue or painful swallowing. Encourage your child to drink as much fluid as possible to prevent dehydration.Enlarged spleen: It’s common for children and teens with mono to have an enlarged spleen during the illness. When the spleen is enlarged, it may start to filter out normal red blood cells and platelets, leading to their low levels in the blood. In most cases, the spleen returns to its normal size on its own.Swollen liver: It’s possible for children with mono to have a mildly inflamed liver. This usually resolves on its own once they start feeling better. If you notice a yellowing of your child’s eyes or skin, known as jaundice, call your healthcare provider. How Long Is Mono Contagious in Kids? A child with mono can spread the infection to others for as long as they are having symptoms. That means they could be contagious for weeks if not months. They might also be able to keep spreading the virus after they get better, but
2025-04-07To parasites? Because of intense competition for access to mates. Immunosuppression due to the negative effects of androgenson immune function. Møller et al. (2004) analyzed covariationbetween relative size of immune defense organs and brain in birds. Therelative size of the bursa of Fabricius and the spleen in adults covariedpositively with relative brain size across species, and the relationshipbetween immune defense and brain size was stronger for males. Thus, speciesin which males have relatively large brains also have relatively largeimmune defense organs. These findings support the hypothesisthat sex differences in brain function have evolved as a consequence ofdifferences in susceptibility to parasitism. Different components of theimmune system (bursa and spleen) may have evolved to mitigate the negativeimpact of parasites on brain function. Covariation between relative brain mass of juvenile birdsand relative mass of bursa of Fabricius in different bird species. Relativemass was calculated as residuals from a phylogenetically corrected regressionof log10-transformed organ mass on log10-transformed body mass. The linesare the linear regression lines for males and females, respectively (From:Møller et al. 2004).B-lymphocytes, the cells that produce antibodies, are initially producedin the embryonic liver, yolk sac and bone marrow, then move through theblood to the bursa of Fabricius (BF). Birds have a bursa of Fabricius (BF), which is an outpocketingof cloaca. Within the BF, B-lymphocytes mature then migrate to otherbody tissues. The bursa is a blind sac that extends from the dorsal sideof the cloaca, the common portal of the reproductive, urinary, and digestivesystems. Within the bursas of young birds are extensive
2025-03-29Lymphoid System Splen Read moreQuick FactsLocation: Left epigastric region of abdomen.Arterial Supply: Splenic artery.Venous Drainage: Splenic vein.Innervation: Sympathetic: postganglionic fibers from the celiac ganglion; Parasympathetic: preganglionic fibers from vagal trunks.Lymphatic Drainage: Splenic nodes > superior pancreatic nodes > celiac nodes > intestinal trunk > cisterna chyli > thoracic duct.Related parts of the anatomyStructureThe spleen is classified as a secondary lymph organ and is the largest lymph organ in the body. It has a convex, smooth lateral or external surface. A sharp border, notched anteriorly, separates this surface from the concave medial or internal surface. The later forms the hilum for the entry of neural, vascular, and lymphatics to the organ. The hilum is surrounded by impressions left by other abdominal organs to which it is closely related.Anatomical RelationsThe spleen is located in the left epigastric region of the abdomen. The lateral surface of the spleen lies just inferior to the far-left side of the diaphragm, just medial to the left costodiaphragmatic recess. The impressions on its medial surface are formed superiorly by the fundus of the stomach, inferiorly by the left colic flexure (hence its alternate name “splenic flexure”), and posteriorly by the superior pole of the kidney and its surrounding perirenal fat pad. The very distal end of the tail of the pancreas is also very closely related to the medial surface of the spleen, at the hilum.A mnemonic that helps in recalling the metrics of the spleen is the 1x3x5x7x9x11 rule. This rule describes the spleen as being 1" thick, 3" wide by 5" long, weighs around 7 oz (200 grams), and lies between the 9th and 11th ribs.FunctionThe functions of the spleen are many and still incompletely understood. It is primarily an organ of the immune system and as such plays an important role in immunological defense. It is also known to be involved in metabolism and maintenance of some components of the blood.Arterial SupplyThe splenic artery, one of the three primary branches of the celiac trunk, provides the arterial supply to the spleen.Venous DrainageThe splenic vein drains the spleen. It typically joins the inferior mesenteric vein just before it merges with the superior mesenteric vein to form the portal vein.InnervationThe spleen is innervated by both divisions of the autonomic nervous system that forms a plexus around its vasculature. This plexus includes postganglionic sympathetic fibers originating in the celiac ganglion and preganglionic parasympathetics from the vagal trunks.Lymphatic DrainageLymphatics travel with blood vessels collecting into a plexus that drains into lymph nodes of the splenic hilum and pancreatic tail. From here, lymph drains to superior pancreatic nodes, as well as inferior pancreatic and left gastroomental lymph nodes, eventually draining into celiac nodes and the cisterna chyli (Földi et
2025-04-11Is part of your bone tissue or your bone marrow or heart tissue or liver or spleen, if light can access those cells, it will change the way that those cells function for better or for worse. For many organs within our body that reside deep to our skin, light never arrives at those cells. A really good example of this that we'll touch on later is the spleen. Unless you have massive damage to your body surface, unless you literally have a hole in your body, light will never land directly on your spleen. But the spleen still responds to light information through indirect pathways, and those indirect pathways arise through light arriving on the skin and light arriving on the eyes.Andrew Huberman:So a key principle that I'm going to return to again and again today is that the ways in which light can impact the biology of your organelles, your cells, your organs, and the tissues and, indeed, your whole body, can either be direct — so for instance, light onto your skin impacting skin or light onto your photoreceptors impacting the photoreceptors of your eye — or it can be indirect; it can be light arriving on your photoreceptors, the photoreceptors then informing another cell type, which informs another cell type, which then relays a signal in kind of a bucket brigade manner off to the spleen and says to the spleen, "Hey, there's a lot of UV light out here. We're actually under stress. In fact, there's so much UV light that you need to activate an immune program to protect the skin." And in response to that, the spleen can deploy certain signals in certain cell types to go out and start repairing skin that's being damaged by UV light.Andrew Huberman:So we have direct signals and we have indirect signals, but in every case, it starts with light of particular wavelengths being absorbed by particular pigments or properties of the surfaces that those light waves land on. And as you recall from our discussion about the physics of light, remember, it's not just about light impinging on the surface of your body. Light can actually penetrate deep to the skin and access at least certain tissues and cells of your body. Even though you can't see those wavelengths of light, they are getting into you all the time.Andrew Huberman:So perhaps the best way to wrap this discussion about the physics and the biology of light with a bit of a bow is to think about light as a transducer, meaning a communicator of what's going on in the environment around you, and that some of those signals are arriving at the surface and impacting the
2025-04-23