Question

In the diagram of section of Graafian follicle, different parts are indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts they indicate.

• A. A- Theca externa, B- Theca interna, C- Membrana granulosa, D- Cumulus oophorus, E- Antrum, F- Ovum
• B. A- Membrana granulosa, B- Theca externa, C- Ovum, D- Cumulus oophorus, E- Antrum, F- Theca interna
• C. A- Theca externa, B- Membrana granulosa, C- Ovum, D- Cumulus oophorus, E- Antrum, F- Theca interna
  
• D. A- Theca externa, B- Theca interna, C- Ovum, D- Membrana granulosa, E- Antrum, F- Cumulus oophorus

Answer 1

The correct option is C A- Theca externa, B- Membrana granulosa, C- Ovum, D- Cumulus oophorus, E- Antrum, F- Theca interna

The theca externa (A) is the outer layer of the graafian follicle. Theca interna, inner layer (B) cells express receptors for luteinizing hormone (LH) to produce androstenedione. A small sac, embedded in the ovary, that encloses an ovum (C). Cumulus oophorus (D) is a cluster of cells (called as cumulus cells) that surround the oocyte both in the ovarian follicle and after ovulation. The follicular antrum (E) is the portion of an ovarian follicle filled with follicular fluid. Graafian follicle consist of an external fibrovascular coat, connected with the surrounding stroma of the ovary by a network of blood vessels; and an internal coat, which consists of several layers of nucleated cells, called the membrana granulosa (F).

Therefore, the correct answer is option C.