Question

You see a follicle containing a large central cell, with some fluid visible within the follicle but the fluid does not go most of the way around the central cell. This follicle is a

A) primordial follicle
B) vesicular or Graafian follicle
C) antrum
D) secondary follicle
E) primary follicle

Answer 1

The follicle in question is a secondary follicle, characterized by a large central cell, thin zona pellucida, and fluid in the antrum that does not enclose the central cell entirely.

Step-by-step explanation:

The follicle you are describing is a secondary follicle. A secondary follicle can be identified by the presence of a large central cell (the primary oocyte), a thin acellular membrane called the zona pellucida, and a growing fluid-filled space known as the antrum. The follicular fluid within the antrum begins to accumulate between the granulosa cells, and although it is visible, it does not encompass the central cell entirely at this secondary stage. At this point, the follicle is not yet mature enough to be classified as a tertiary or Graafian follicle, which would have a fully formed antrum that surrounds the central cell.