Which different hormones control the functions of human reproductive system through chemical coordiantion ?
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Solution
Hormones and the Human reproductive system:
Hormones that control the function of the human reproductive system through chemical coordination is oestrogen, testosterone and progesterone.
Oestrogen are produced by the follicles that target the endometrium.
Progesterone are produced by corpus luteum that target the endometrium.
Testosterone is the male sex hormone produced by the testes that control the male reproductive characteristics.
Apart from these, there are also lutenising hormones (LH) and follicle stimulating hormones (FSH) that regulate the activities of the crucial hormones mentioned earlier.
Chemical coordination of the hormones:
Hormones
Roles
Oestrogen
Thickening of the lining of the uterus
Inhibits LH and FSH for most of the cycle (negative feedback)
If no fertilization, it falls by 21-24 days
Triggers LH and FSH release pre-ovulation
Progesterone
It maintains the lining
It inhibits LH and FSH (negative feedback)
If no fertilization, it falls by 21-24 days
Testosterone
It helps in the growth of testis in puberty.
It also helps in the growth of secondary sex organs in male like scrotum, prostate gland etc.
It also helps to develop secretory sex characters in male.
It helps in spermatogenesis.
FSH
In ovaries, triggers follicular growth
Ovulation (Day 14)
Triggers secretion of estrogen (from the developing follicles)
LH
Surge which causes ovulation
It leads to the formation of the corpus luteum after ovulation
Triggers less oestrogen and more progesterone
Stimulates the synthesis and secretion of testosterone