Examlex
When organs are transplanted from one individual to another, they can be attacked by cells of the host's immune system and rejected. Sometimes, the opposite occurs, in which the transplant (the graft) attacks the host. This is called graft-versus-host disease, and is MOST common in which of the following types of transplants?
Blood Test
A medical procedure that involves the testing of a blood sample to evaluate health conditions, detect diseases, or measure the level of specific substances in the blood.
Mesoderm
The middle layer of an embryo in early development, from which the musculoskeletal, circulatory, and excretory systems of the body develop.
Ectoderm
Ectoderm is the outermost layer of cells or tissue of an embryo in early development, giving rise to the formation of the nervous system and skin.
Endoderm
The innermost layer of cells or tissue of an embryo in early development that gives rise to the lining of the digestive and respiratory systems.
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