Female's Ultimate Weapons: THE OVARIES
The female reproductive organ which produces and releases sex hormones that govern physical characteristics and fertility. These two almond-shaped organs are essential for ensuring the continued survival of species by producing ova, or eggs, which are intended for fertilization.
ESTROGEN
Estrogen is primarily secreted by Corpus luteum. It works on breast development. It also induced growth of glandular and ductal tissue. It also facilitates the development of sex organs and other tissues related to reproduction
and stimulation of endometrium before ovulation. It also takes part of bone growth and protective effect on heart. At pregnancy, it stimulates growth of
uterus and breast tissue, inhibit active milk production, and relax pelvic
ligaments. This hormone mainly targets External and internal reproductive organs and breast
PROGESTERONE
Progesterone is also one of the main hormones produced by corpus luteum. This hormone is also secreted by placenta. This acts by stimulating secretion of endometrial
glands which causes endometrial vessels to become dilated and tortuous in
preparation for possible embryo implantation. At pregnancy, it induces growth of
cells of fallopian tubes and uterine lining to nourish embryo; decreases
contractions of uterus. This hormone also prepares breasts for lactation but inhibits prolactin secretion. This targets uterus and breast of a female individual.
RELAXIN AND INHIBIN
Relaxin, also secreted by corpus luteum which contributes to the flexibility of pubic symphysis during pregnancy and dilation uterine cervix during labor and
delivery. This targets uterus, uterine
cervix and pubic symphysis.
Inhibin, on the other hand, is secreted by granulose cells of
growing follicles and by the corpus luteum. This is the only one which inhibits the secretion of FSH and LH from anterior pituitary in which its name was derived.
IF I WERE YOU.....DON'T LET THIS HAPPEN
REFERENCES:
1. An Overview of the Ovaries - Estrogen,
Progesterone, and Reproduction. (n.d.). Retrieved from
http://www.endocrineweb.com/endocrinology/overview-ovaries
2. Tortora, G. J.,
&Derrickson, B. (2009). Principles of anatomy and physiology.
Hoboken, NJ: John Wiley & Sons.
3. Your hormones | The Pituitary
Foundation. (n.d.). Retrieved from
http://www.pituitary.org.uk/information/what-is-the-pituitary-gland/hormones/
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