Chapter 222 of 2363 min read
Gametogenesis and menstrual cycle
Why this is asked: FSH acts on Sertoli cells to drive spermatogenesis, which then release inhibin as feedback to lower FSH; LH — called ICSH in males — acts on Leydig cells to trigger testosterone synthesis. In the menstrual cycle it is specifically the LH surge around day 14 that triggers ovulation, not the rising FSH that matured the follicle beforehand — a sequencing swap NEET tests directly.
This chapter is part of a paid pack
A sample of the book is free to read — the rest, including this chapter, unlocks with full access.
See pricingTest yourself
- •Consider the following: A. The reductive division for human female gametogenesis starts earlier than that of male gametogenesis. B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females. C. The first polar body is associated with the formation of the primary oocyte. D. The luteinising hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding. Choose the correct answer from the options given below:
- •The first menstruation is called:
- •Match List I with List II.
Choose the correct answer from the options given below:List I List II A. Head I. Enzymes B. Middle piece II. Sperm motility C. Acrosome III. Energy D. Tail IV. Genetic material
Open this in the full syllabus view · Zoology