Hormones Secreted by Ovary
1. Estrogen
Ovarian Follicle secreting oestrogen.
2. Progesterone
Corpus luteum secreting mainly progesterone.
3. Inhibin
4. Relaxin
1. Estrogen
Estrogen is secreted by cells in wall of ovarian follicles (growing graafian follicle).
Function of Estrogen
1. Promote development of female reproductive tract.
2. Development and maintenance of secondary sex characteristics; breast.
3. Secreted by ovaries prior to ovulation.
4. Calcium hemostasis.
5. Build uterine lining
6. Estrogens are produced primarily in the ovaries, corpus luteum, and placenta by during pregnancy.
2. Progesterone
Progesterone is produced by corpus luteum.
1. Prepare the uterus for pregnancy.
2. Secreted by ovaries after ovulation.
3. Thickening of functional layer of of endometrium (uterine line).
4. Prepare the endometrium for implantation of fertilized ovum and mammary glands for milk secretion.
5. High level of progesterone inhibit GnRH (gonadotropin releasing hormone); LH, FSH hormone.
3. Inhibin
Inhibin is secreted by corpus luteum of overy.
Inhibin decreases secretion of FSH, and LH.
4. Relaxin
Produced by corpus luteum and also produced by placenta,chorion, decidua during last trimester of pregnancy.
This hormone loosens and relaxes muscles, joints and ligaments during pregnancy to help body stretch.
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