Multiple choice

In which of the following follicles, primary oocyte grows in size and completes its first meiotic division?

  1. Primary follicle

  2. Tertiary follicle

  3. Secondary follicle

  4. Atretic follicle

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The primary oocyte completes its first meiotic division within the secondary follicle (also known as the Graafian follicle) just before ovulation. The primary follicle contains only the primary oocyte arrested in prophase I.