What Causes Rejection by the Body's Immune System After a Transplant

question 21

Multiple Choice

What causes rejection by the body's immune system after a transplant of an improperly matched organ?

• A)non-self proteins in the tissue
• B)the presence of foreign MHC proteins on the donor tissue
• C)antibodies and cytotoxic T lymphocytes (CTLs)responding to foreign tissue
• D)non-self proteins in the tissue,the presence of foreign MHC proteins on the donor tissue,and antibodies and cytotoxic T lymphocytes (CTLs)responding to foreign tissue
• E)Both non-self proteins in the tissue and antibodies and cytotoxic T lymphocytes (CTLs)responding to foreign tissue can cause an organ to be rejected.

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Definitions:

Parietal Lobes

Regions of the brain located behind the frontal lobes, involved in processing sensory information from the body, and are crucial for spatial orientation and navigation.

Endocrine Glands

Glands of the endocrine system that release hormones directly into the bloodstream to regulate various bodily functions.

Hormones

Chemical substances, released from endocrine glands, that travel through the bloodstream to targeted tissues; the tissues are later influenced by the hormones.

Gonads

Sex glands responsible for producing gametes (sperm in males and eggs in females) and sex hormones.