Question

Theca interna releases which hormone?

• A. Progesterone.
• B. Estrogen.
• C. LH.
• D. FSH.

Hint:

Theca interna synthesizes androgens, which are converted to estrogen by granulosa cells in the ovarian follicle.

Answer 1

The Correct Option is B

Step 1: Function of theca interna.
The theca interna is a layer of cells in the ovarian follicle that plays a critical role in hormone production. It synthesizes androgens, which are precursors to estrogen. Step 2: Hormone production.
The granulosa cells, under the influence of FSH, convert the androgens produced by the theca interna into estrogen through aromatization. Step 3: Explanation of other options.
Option (A): Incorrect. Progesterone is primarily produced by the corpus luteum, not theca interna. Option (C): Incorrect. LH (luteinizing hormone) stimulates theca interna but is not secreted by it. Option (D): Incorrect. FSH (follicle-stimulating hormone) regulates granulosa cells, not theca interna. \[ \therefore \text{The correct answer is: Estrogen.} \]