Question

Which of the following is true regarding the blood-testis barrier?

a. It prevents heat loss from the testes.
b. It prevents antibodies in the blood from getting to the germ cells.
c. It maintains testis temperature at 37°C.
d. It maintains testis temperature at 35°C.
e. It prevents blood from getting to the testes.

Answer 1

b. It prevents antibodies in the blood from getting to the germ cells.

Step-by-step explanation:

Blood testes barrier is present in the seminiferous tubule and divides the epithelium into separate compartments called basal and alduminal compartments.

During meiosis in germ cells, the spermatocytes become genetically different from the other cell present in the body. So our immune cells recognize these sperms as foreign bodies.

Therefore blood testes barrier prevent the interaction of sperms with immune cells thereby protect the spermatocytes from immune attack. Therefore the right answer is b.