name the hormone secreted by following endocrine glands and mention their function a) ovary
Answers
Answer:
endocrine glands are ductless glands , secreting chemical substances called hormones. the hormones are carried by the blood from the site of production to the site of action.
the endocrine glands are
- pituitary gland
- pineal gland
- thyroid gland
- parathyroid gland
- thymus gland
- pancreas - islets of langerhans
- adrenal gland - adrenal cortex and medulla
- gonads - testis in men and ovaries in women
- Their secretions are .
Answer:
Ovaries as an endocrine gland
Females have a pair of ovaries in the abdomen in the pelvic cavity near the oviducts and the uterus.
Ovaries are also primary sex organ which produces one ovum per menstrual cycle i.e. in 28 days.
The two Steroid hormones secreted by Ovaries are Estrogen and Progesterone.
Ovaries are composed of ovarian follicles and stromal tissues.
The ovarian follicles synthesize and secrete Estrogen.
Estradiol is the main Estrogen which helps in the development of female secondary characters and stimulates the maturation of ova. It also develops uterine epithelium and mammary glands.
After ovulation, teh follicle converts into a structure called corpus luteum. The corpus luteum secretes Progesterone.
The progesterone further helps in the development of uterine epithelium and mammary glands. It helps in the formation of placenta and maintains pregnancy. It also helps in milk secretion.
Relaxin, Inhibin and Actin are also the hormones secreted by corpus luteum.
Relaxin helps in softening ligaments like the foot ligaments and the ligaments near the pubic area.
Inhibin and Actin inhibits and activates production of FSH and GnRH.