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2.Human Reproduction
normal
Study the flow chart. Name the hormones labelled as $A, B, C, D$ at each stage.
$A \quad B\quad C \quad D$
A
$Gn-RH$$\quad$ $ICSH$ $\quad$Androgen$\quad$ $FSH$
B
$Gn-RH$$\quad$ $LH$$\quad$ $FSH$ $\quad$Androgens
C
Gonadotropins$\quad $ $LH$ $\quad $$FSH$ $\quad $Testosterone
D
$Gn-RH$ $\quad $$FSH$$\quad $ $LH$ $\quad $Androgens
Solution
$GnRH$ (= Gonadotropin releasing hormone) is a hypothalamic hormone, which acts on anterior pituitary to secrete gonodotropins $(FSH \;\& \;LH)$. $LH$ acts at Leyding cells and stimulates synthesis and secretion of androgens. $FSH$ acts on sertoli cells and stimulates some factors which help in the process of spermiogenesis
Standard 12
Biology
