GONADS | PRIMARY SEX ORGANS | NEET BIOLOGY | SEX HORMONES FROM TESTIS & OVARIES | NCERT HIGHLIGHTS |
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The Hypothalamus secretes Gonadotropin releasing
The Hypothalamus secretes Gonadotropin releasing factor/horomne (GnRF or GnRH) which causes the anterior pituitary to secrete Gonadotropins (Follicle stimulating hormone and leutenizing hormone “FSH” and “LH”). The ovaries secrete estrogen and progesterone. The testicles secrete testosterone and dihydrotestosterone (DHT).
The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the female. These organs are responsible for producing the sperm and ova, but they also secrete hormones and are considered to be endocrine glands.
Two groups of female sex hormones are produced in the ovaries, the estrogens and progesterone. These steroid hormones contribute to the development and function of the female reproductive organs and sex characteristics.
The primary hormones involved in the functioning of the male reproductive system are follicle-stimulating hormone (FSH), luteinizing hormone (LH) and testosterone.
Gonads are the male and female primary reproductive organs. The male gonads are the testes and the female gonads are the ovaries. These reproductive system organs are necessary for sexual reproduction as they are responsible for the production of male and female gametes.
Gonads also produce sex hormones needed for the growth and development of primary and secondary reproductive organs and structures.
Female Gonad Hormones-
The primary hormones of the ovaries are estrogens and progesterone.
Estrogens—Group of female sex hormones important for reproduction and the development of female sex characteristics. Estrogens are responsible for growth and maturation of the uterus and vagina; breast development; widening of the pelvis; greater fat distribution in the hips, thighs, and breast; uterus changes during the menstrual cycle; and increased growth of body hair.
Progesterone—Hormone that functions to prepare the uterus for conception; regulates uterus changes during the menstrual cycle; increases sexual desire; aids in ovulation; and stimulates gland development for milk production during pregnancy.
Male Gonad Hormones-
Androgens are hormones that primarily influence the development of the male reproductive system. Although found in much higher levels in men, androgens are also produced in women. Testosterone is the main androgen secreted by the testes.
Testosterone—Sex hormone important for the development of male sex organs and sex characteristics. Testosterone is responsible for increased muscle and bone mass; increased growth of body hair; development of broad shoulders; deepening of the voice; and growth of the penis.
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در تاریخ 1402/07/04 منتشر شده
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