Question

In the diagram of section of Graafian follicle, different parts are indicated by alphabets. Choose the correct combination.

• A. A-membrana granulosa, B-theca interna, C-ovum, D-cumulus oophorus, E-antrum, F-theca externa
• B. A-theca externa, B-theca interna, C-ovum, D-membrana granulosa, E-antrum, F-cumulus oophorus
• C. A-theca externa, B-theca interna, C-ovum, D-cumulus oophorus, E-antrum, F-membrna granulosa
• D. A-membrana granulosa, B-theca externa, C-ovum, D-cumulus oophorus, E-antrum, F-theca interna

Answer 1

Answer: (B)

A-theca externa, B-theca interna, C-ovum, D-membrana granulosa, E-antrum, F-cumulus oophorus

Theca externa is the outer layer of the theca folliculi.
Theca interna is the inner, highly vascularized layer of cuboidal steroid-secreting cells, fibroblasts and collagen fibres.
Ovum is the egg cell.
Membrana granulosa consists of several layers of nucleated cells.
Antrum is the cavity in the epithelium, that envelops the oocyte.
Cumulus oophorous is a cluster of cells, that surround the oocyte both in the ovarian follicle and after ovulation.