Question

In absence of fertilization, corpus luteum degenerates into ____________.

• A. tunica albugenia
• B. membrana granulosa
• C. zona pellucida
• D. corpus albicans

Hint:

Follow the sequence in the ovarian cycle: Follicle $\rightarrow$ Ovulation $\rightarrow$ Corpus Luteum. If no fertilization: Corpus Luteum $\rightarrow$ Corpus Albicans. If fertilization: Corpus Luteum is maintained.

Answer 1

The Correct Option is D

After ovulation, the remnant of the ovarian follicle develops into the corpus luteum, which secretes progesterone. If fertilization does not occur, the corpus luteum begins to break down about 10-12 days after ovulation. This degeneration process involves apoptosis of the luteal cells, and the structure is replaced by a mass of fibrous scar tissue called the corpus albicans (Latin for "white body").