Which of the following is a component of secondary follicle?

Options

A. Theca interna
B. Secondary oocyte
C. Cumulus oophorus
D. Primary oocyte

Answer

To determine which of the following is a component of the secondary follicle, we will analyze each option provided:

1. **Theca interna**:
- The theca interna is a layer of rounded cells that surrounds the secondary follicle. It is not located inside the secondary follicle itself but rather is part of the outer structure. Therefore, this option is incorrect.

2. **Secondary oocyte**:
- The secondary oocyte is found within the Graafian follicle, which is a more developed stage than the secondary follicle. Since the secondary oocyte does not reside in the secondary follicle, this option is also incorrect.

3. **Cumulus ophorus**:
- The cumulus ophorus consists of granulosa cells that surround the oocyte. While it is associated with the follicle, it does not constitute a component of the secondary follicle itself. Thus, this option is incorrect as well.

4. **Primary oocyte**:
- The primary oocyte is indeed contained within the secondary follicle. It is the immature egg cell that is present in the secondary follicle. Therefore, this option is correct.

**Final Answer**: The component of the secondary follicle is the **primary oocyte**.