Exam 16: Lymphatic System and Immunity

The largest lymphatic organ is the thymus.

A baby getting antibodies from mother's milk is an example of active artificial immunity.

When a B cell comes into contact with an antigen, it develops into a plasma cell or a memory cell.

Describe and give examples of natural active, natural passive, artificial active, and artificial passive immunity.

After puberty, the thymus continues to enlarge but at a much slower rate.

Which of the following is not considered an antigen-presenting cell?

Match each term with its corresponding definition or description. -Immunity conferred by getting the measles and subsequently being immune to getting the disease again

Some T cells kill foreign cells by releasing toxic chemicals in the area of the antigen.

What can be done to prevent the rejection of transplanted tissue?

If one identical twin donates an organ to the other, why is rejection unlikely?

An anaphylactic reaction is most likely caused by the release of antibodies by B cells.

T cells mature in the thymus gland.

Once a B cell is transformed into a plasma cell, it can release as many as 50,000 antibodies an hour.

If you are exposed to hepatitis A and have not been vaccinated against it, you may receive antibodies from another person. This is an example of _____ immunity.

Because it is so extensive, the lymphatic system can promote the spread of cancer from one area of the body to another.

When neutrophils leave the blood and enter the tissue, they are called macrophages.

The thymus reaches its maximum size and function in late middle age.

The condition in which tissues swell due to the accumulation of lymph is called

One identical twin can donate an organ to the other without fear of it being rejected because their human lymphocyte antigens match.

Which of the following is the largest lymphatic organ?