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Lymphatic System

This category is for questions about the various vessels by which lymph, a watery fluid of leukocytes, circulates through the body, providing transportation for some materials and removing particulate from tissues.

1,658 Questions

Lymph vs plasma?

Lymph is actually plasma without plasma proteins. Lymph is formed when plasma oozes out of the minute pores of the capillaries. Since plasma proteins are too large to go through the pore, lymph is devoid of any plasma proteins.

Are child immune systems weaker?

Depression lowers everyone's immunity. Everything is depressed, not just the mood.

How is the immune system interdependent on the cardiovascular system?

1. From a cardiovascular point of view, current medical focus is on the effects of chronic inflammation on vascular health. It is known that patients with chronic disease, esp. inflammatory disease, have higher risk of CV disease. Certain medications that have a immune modulating effect have been shown to lower CV risk. One of the main ideas is that inflammation has an adverse effect on blood vessel intima, leading to higher risk of artherosclerotic disease.

2. From an immune-system point of view... this is even more complex. Immune modulators released in all sorts of circumstances (from stress, to sepsis) have effects on the CV system, with wide ranges from inotropic, chronotropic, as well as vasodilative effects.

White blood cells are part of the immune system's what?

White blood cells are part of the immune system's defense. White blood cells flock to irritations and infections to heal or eliminate them.

What is responsible for stimulation the immune system to produce antibodies?

The presence of something that shouldn't be there like bad bacteria, viruses and fungi.

Also your immune system does not only become active when under threat much of it patrols your body keeping you healthy specialised T-cells and B-cells enable you to be immune to things that you have encountered before as they become memory cells keeping lookout for whatever triggered them in the first place and to quickly call for reinforcements should you experience it again.

Other cells such as Destroyer cells are your 1st line of defence which find infected cells kill what's inside by destroying that cell unfortunely they destroy many others nearby creating alot of collateral damage for instance when you have a cold and you get a you get a sore throat that is evidence that your destroyer cells have been hard at work.

What is overactive immune system?

It means your immune system begins to attack your body's own healthy cells and tissues, when it is only supposed to attack viruses and bacteria that might cause you harm. Check out auto immunity

What prevents backflow of lymph fluid?

Depending on where the problem exists, you could use supportive hose. For example, compression stockings on the legs or compression sleeves on the arms. Other areas might be more problematic.

What is the importance of the lymph nodes?

The lpmph vessel is important for your heart because it is a important blood vessel in your body

What organ or lymph filters blood?

Nearly all organs in the body have a primary lymph node group filtering the tissue fluid, or lymph, that comes from that organ.

What are two diseases that your immune system can't fight?

I would like to believe that they can be Cancer and HIV/AIDS, since seeing that the body's immune system would be broken down/damaged and would not be able to defend the body (HIV/AIDS).I am not sure the reason for cancer

What is the name of the structural units of lymph node that contain a germinal center?

Is the central ,light staining region within a lymphoid follicle in spleen ,lymph nodes,or mucosal lymphoid tissue that forms during T cell-dependent humoral immune response and is the site of B cell and antibodies affinity maturation and antibodies class swiching .

Does stress weaken your immune system?

It definitely weakens your immune system! I contracted MRSA 4 years ago (due to surgery) and it took over a year after being off of IV antibiotics to build up my system enough that I would not have to go to the dr everytime I got a cold. I just could not fight anything off! Even now, I have a hard time kicking a minor cold.

Where does lymph go after it leaves the collecting ducts?

The processed lymph will exit one of the lymph ducts, the right lymph duct or the Thoracic duct, depending on where the lymph came from. When it exists the lymph duct, it will enter the subclavian vein, which is also near the superior vena cava, the final vein before blood enters the heart. The lymph once again a part of the bloodstream. It will once again serve its purpose as tissue fluid. hahaha

What group of proteins mark foreign invaders and attract phagocytes to destroy them?

B cells release antibodies that attach to foreign invaders and mark them for destruction by phagocytes.

What is a pineal?

The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis, conarium or the "third eye") is a small endocrine gland in the vertebrate brain. It produces the serotonin derivative melatonin, a hormone that affects the modulation of wake/sleep patterns and seasonal functions. Its shape resembles a tiny pine cone (hence its name), and it is located near the centre of the brain, between the two hemispheres, tucked in a groove where the two rounded thalamic bodies join.

Where is lymph located?

unlike blood, lymph does not have a pump to push it around the body therefore lypmh relies on the contraction of skeletal muscles and the bodys natural movement to push the lymph back upto the neck where it empties into the subclavian veins

Where does lymph fluid enter the blood stream?

Lymph enters the circulatory system at two places in the subclavian veins. One is on the left side and the other on the right side just under the collar bones on each side.

Is the integumentary the same thing as the immune system?

no it is not. The integumentary system is your skin, hair, nails, and sweat/oil glands. It works with the immune system in that it helps protect the body. The immune system helps fight off bacterial infections and viruses on the inside. they work together, but they are not the same thing.

How does continuous and prolonged stress affect the immune system?

Very simply stated: Stress causes an increase in the hormone cortisol. Cortisol is a glucocorticoid steroid and has a supressive effect on the immune system, as do all glucocorticoid steroids (ex. dexamethasone). They suppress the inflammatory process which is critical in a properly functioning immune system.

The ways in which the immune system is suppressed by glucocorticoids is EXTREMELY complex, but a simple way to put it is that it keeps white blood cells from doing their job and keeps them from communicating with other white blood cells.