Question

Identify the hormones 'A', 'B' and ' C that are labelled in the given flow chart:

• A. A - GnRH, B- ICSH, C- FSH
• B. A - GH, B- FSH, C- LH
• C. A - GnRH, B - PRL, C - ICSH
• D. A - GnRH,B - FSH,C - LH

Answer 1

Answer: (D)

Hypothalamus secretes GnRH (Gonadotropin releasing hormone) which stimulates pituitary to release FSH (follicle stimulating hormone) and LH (luteinising hormone). FSH stimulates ovarian follicles to grow while LH (also called interstitial cell stimulating hormone) stimulates Leydig’s cells to secrete testosterone.