Quick Answer: Which Is The Best Explanation Of How Complement A Group Of About 20 Inactive Enzymes In The Plasma And On Cell Surfaces Is Activated And Produces Cytolysis?

What structure drains lymph from about three fourths of the body into the subclavian vein?

On the right side of the body, the right sides of the head, thorax, and right upper limb drain lymph fluid into the right subclavian vein via the right lymphatic duct.

On the left side of the body, the remaining portions of the body drain into the larger thoracic duct, which drains into the left subclavian vein..

Which of the following is a function of the thymus?

The thymus produces progenitor cells, which mature into T-cells (thymus-derived cells). The body uses T-cells help destroy infected or cancerous cells. T-cells created by the thymus also help other organs in the immune system grow properly.

Why is the complement system effective against microbes but does not react against host cells and tissues?

Why is the complement system effective against microbes but does not react against host cells and tissues? The complement system uses human cell surfaces as self and external foreign molecular structures as non-self and immediately destroys non-self. … These are mediated by activated complement proteins.

How does the alternative complement pathway kill the invading microbial cell?

Antibodies on the surface of virally infected host cells activate natural killer (NK) cells. … How does the alternative complement pathway kill the invading microbial cell? A. It causes the oxidation of the microbe’s membranes by producing superoxide ion.

Which of these cells is the most important in the release of histamine which promotes inflammation?

Mast cellsMast cells are now thought to exert critical proinflammatory functions, as well as potential immunoregulatory roles, in various immune disorders through the release of mediators such as histamine, leukotrienes, cytokines chemokines, and neutral proteases (chymase and tryptase).

Is coffee bad for lymphatic system?

Avoid diuretics (“water pills”), alcohol and caffeine. Alcohol and caffeine could also function like diuretics. They both could dilate the lymph tissue and cause more swelling, and as a result, exacerbate the lymphedema.

Which organ is not included in the lymphatic system?

The appendix: The appendix is a pouch of lymphatic tissue that’s attached to the large intestine. It’s located in the lower-right area of the abdomen. Although it’s made of lymphatic tissue, the appendix doesn’t appear to have much lymphatic function in humans, but it does release some mucus into the large intestine.

How do you unclog your lymph nodes naturally?

To clear the supraclavicular area:Begin by lying on a comfortable, flat surface.Cross your arms on your chest, with your hands resting just below the collarbones.Then lift your elbows slowly. The muscle action is as much pressure required to prepare the area to flush lymphatic fluid.

What two organs are considered to be part of the lymphatic system?

The lymphatic system is composed of:Primary lymphoid organs: These organs include the bone marrow and the thymus. … Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel).