What are the changes in the oogonia during the transition of a primary follicle to Graafian follicle?

Explanation

To understand the changes in the oogonia during the transition from a primary follicle to a Graafian follicle, we can break down the process into several key steps:

### Step-by-Step Solution:

1. **Formation of Primary Follicle**:
- The process begins with the primary oocyte, which is an immature egg cell (oogonium) that has entered the first meiotic division but is arrested in prophase I.
- The primary oocyte gets surrounded by a layer of granulosa cells, which are somatic cells that provide support and nourishment to the developing oocyte. This structure is called a primary follicle.

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