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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

What are some ways microbes evade the body's immune system?

Microbes evade the immune system through inhibition of phagocytosis by affecting the receptors that phagocytes use to engulf bacteria or by mimicking host cells so that the immune system does not recognize them as foreign.

Can ruptured ovarian cysts cause leukocytes in urine?

It should not. Leukocytes appear in urine when there is a urinary tract infection. An ovarian cyst that has ruptured may cause irritation and inflammation in the pelvic cavity, but that is outside the bladder and urinary tract.

What function is the immune system concerned with?

It's your bodies defensive mechanism against attacks from microbes and parasites. People with HIV have a deficient immune system and can consequently die from something as minor as the common cold.

It is also the cause of allergic reactions, as you body has wrongly detected the allergen as a threat and does everything it can to remove it (such as making your nose run).

Hope this helps!

What best describes the location and role of the lymphatic system?

a network of vessels that collects fluid from bodytissues and returns it to the bloodstream.

What is the function of the lymphatic vessel?

Our cells are located in a sea of lymph, a pale fluid. The lymphatic vessels run parallel to the blood veins in the body. The vessels of the lymph system are filled with a fluid called lymph that is collected from the space between the cells in the body. The lymph fluids feed the cells of the body by transporting various nutrients such as salts, minerals, and proteins to every cell of the body

Read more: What_do_lymph_vessels_do

How long does it take to determine whether a lymph node has cancer or not?

In my case, it took about a week. It was reviewed after the biopsy by my local hospital pathologist and then sent to Stanford Medical center for a confirmation. So it could take up to 10 days to be absolutely positive. Mine turned out to be Hodgkins Lymphoma. Good luck, Kristin

Why does the right lymphatic duct only drain the right upper quadrant and not the entire right side?

The thoracic duct runs between the esophagus and the aorta and drains the other three quadrants (including the lower right side). Since it is medial there is no need for the right lymphatic duct to continue into the lower quadrant.

Often in biology there is no obvious why - that's why anatomy is frustrating. Good luck!

How does the immune system respond to the black death?

Black Death causes our body to ave turmors. Also it causes bloody vomit fever and tumors.

Explain the third line of defence both cellular immune and antibody immune response?

The bodies hird line of defense (beyond barriers like the skin and mucus) is the cellular immune response. This is where your bodies cells attack antigens (foreign molecules in your body). Many different types of cells are involved in his, but the most important are HUMORAL cells like MACROPHAGES, which basically surround and digest antigens and B CELLS which produce antibodies which surround the antigen and allow it to be attacked quicker. The OTHER type of cells belong to the ADAPTIVE immune response, which includes B-CELL tha has evolved into a MEMORY cell. These cells remember what the antigen looks like (for instance a specific virus) so that the next time it comes around the cells can make antibodies to atack it.

Is there something necessarily wrong if you get a lymph node on or around the groin?

You may have an infection and your body is working hard to make the white cells that will fight off the infection. See your doctor if it doesn't go away.

What does high granulocytes and low lymphocytes mean?

Decreased lymphocytes can show immune system disorders-lupus, HIV. Increased granulocytes are often a sign of bacterial infection or inflammation. Severely increased granulocytes could mean a bone marrow disorder.

What are limp nodes?

I think you mean lymph node and id im correct a lymph node is a small oval-shaped organ of the immune system which is why they can become swollen. They are found all through the body, and act as filters.

3 Explain the purposes of inductive and deductive reasoning in mathematics?

In mathematics, deductive reasoning is used in proofs of geometric theorems. Inductive reasoning is used to simplify expressions and solve equations.

Does the squeezing of skeletal muscles move lymph through the lymphatic system?

Yes. The lymphatic system does not have a "heart" like in the circulatory system to pump its contents around, so it relies on the movement of adjacent muscles and vessels to propel lymph.

How does massage therapy enhance the immune system?

Massage may enhance the immune system. A study suggests an increase in cytotoxic capacity associated with massage.

Can the lymphatic system be influenced by atmospheric pollution?

The lymphatic system is a system that fights infection in the body. Lymph vessels carry lymphatic fluid. Lymphatic fluid is a fluid that is full of lymphocytes. Lymphocytes are also known as white blood cells. White blood cells are a main component of the immune system. The lymphatic system fights microorganisms, like bacteria, that are polluting the internal environment. I'm not sure if atmospheric pollution directly carries microorganisms that affect the body's lymphatic system, but atmospheric pollution can certainly disrupt or negatively affect the body's immune system. Environmental pollution is a definite stressor on the body. If it is a great enough stress, it can be a drain on the central nervous system. If the central nervous system is negatively affected, then it is ABSOLUTLY possible for any other organ or system to be negatively affected. The central nervous system controls and manages everything. If it is overwhelmed, then some other function is as well.

What is the role of reticular cell in the lymph nodes?

As the lymph is entering the lymph node, there are many pathways that it may encounter, whether it be to subcapsular sinuses, trabecular sinuses, or medullary sinuses. The fibers are present in the lymph nodes in order to control and regulate the direction of the lymph through the node. Someone else said:

They wrap around the collagen so that they wont be exposed.