Depolarization of the Oocyte Plasma Membrane Occurs When the First

question 85

Multiple Choice

Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin α6β1. This is called the ________.

• A) slow block to polyspermy
• B) acrosomal reaction
• C) fast block to polyspermy
• D) fertilization
• E) spermiogenesis

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Definitions:

Spermiogenesis

The final stage of sperm development, where spermatids mature into fully formed sperm cells.

Spermatogenesis

Formation and development of the spermatozoon.

Cryptorchidism

A condition where one or both of the testes fail to descend from the abdomen into the scrotum in male mammals, potentially leading to fertility issues.

Blood-Testis Barrier

A physical barrier formed by Sertoli cells in the seminiferous tubules of the testicles, crucial for protecting developing sperm from harmful substances and immune reactions.