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Questions tagged [lymphatic-system]

23 questions
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Does vaccination lead to short-term secondary infection suceptibility?

For clarity, here is a summary of my question, per anongoodnurse's comment: Does a lower peripheral lymphocyte count resulting from recent immunization render us more susceptible to infection by other viruses? There are many bad-faith arguments…
acvill
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What does lymph actually look like?

I have scoured Google and a number of my anatomy textbooks for a picture of lymph. However, I cannot find any such photo (or video) showing its actual appearance. Can someone provide a reputable image or source where a photograph of lymph can be…
theforestecologist
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white blood cells and cancer cells transport through lymphatic vessels

It is a well-known fact that both of these cells can reach the lymphatic vessels from interstitial space. How does it do so physically? Are there any mathematical models describing this process? It seems like there are endothelial cells along the…
TanMath
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How does most of lymph get back into the blood stream? (I don't mean the lymphatic system)

I once read that it was because of osmotic pressure that it returns to the blood stream, by entering the venules. But why? If lymph originated as plasma how come that the solute concentration is higher in the venule? Doesn't plasma contain solutes…
Tsumugi Kotobuki
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Are there fundamental differences between the adaptive immune systems of higher primates and other mammals?

I recently attended a Leukemia and Lymphoma Society lecture in which one of the lecturers indicated that there are fundamental differences between the adaptive immune systems of higher primates and other animals. The Wikipedia article on adaptive…
Greg Thatcher
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Why are lymph nodes located where they are?

According to the National Cancer Institute, a subdivision of the National Institutes of Health, clusters of lymph nodes are found in the neck, underarm, chest, abdomen, and groin. Why are lymph nodes located in these places? Edit: This article…
user73773
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How widespread among mammals is the glymphatic system's metabolite clearance in the brain during sleep currently known to be?

The glymphatic system and "brain washing" (metabolite clearance) during mammalian sleep: Xie et al. (2013) Sleep Drives Metabolite Clearance from the Adult Brain (also here) has been cited over 3,000 times. It describes in-vivo brain imaging and…
uhoh
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What is tissue gel?

My book consists of following lines."The interstitial fluid is entrapped in minute space among proteoglycan filaments. This combination of proteoglycan filaments and the fluid entrapped within them has a characteristic of gel so called tissue gel. …
Nishimya ishida
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How does glucose delivered intraperitoneal (i.p.) get into the peripheral circulation?

Intraperitoneal delivery of drugs or fluids is something that occurs much more frequently in veterinary medicine than clinical medicine. In veterinary medicine or scientific studies using animals, compounds are frequently given via this route that…
Vance L Albaugh
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CNS lymphatic vessels around ventricles lat et 4th?

I am searching for precise locations of the lymphatic vessels of the CNS based on the applications of the article here. However, I did not find any when having a focus on the immediate region around ventricles (lateral and fourth). I know this 2D…
Léo Léopold Hertz 준영
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Speed of effective lymphatic drainage?

Lymphatic drainage occurs from many portions of the body: To venous angle: head axillary lymph nodes hands abdomen legs (I think legs' drainage goes through abdomen) The speed of the lymph drainage is different in each part of the body…
Léo Léopold Hertz 준영
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How is cartilage immunised?

How is human cartilage immunised (protected) against pathogens since it does not contain lymphatic vessels?
Abdelrahman asal
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Electrode locations for neuron study in stereo EEG?

I am thinking where to put optimally depth electrodes in stereo EEG outside sulci in studying the functioning of neural transmission of N neurons over one perivascular space in rodents, mice or rat, where I would like to know how small N can be. The…
Léo Léopold Hertz 준영
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White blood: cells concentration

Anyone knows of a table with average concentration that can be found in white blood? Something like: Neutrophils - 80% Mast cells - ?% Dendritic cells - ?% B cells - ?% Helper T cells - ?% Killer T cells - ?% Natural killers - ?% Others -…
Ricardo Magalhães Cruz
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What's the difference between a lymphocyte and a plasma cell?

According to my understanding, lymphocytes is the broad terminology for both T lymphocytes as well as B lymphocytes, while plasma cells refers to mature B cells which produce antibodies. But then why are they mentioned separately, doesn't a plasma…
IndianMedico98
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