hormones secreted by gonads, Biology

Hormones secreted by gonads:

1. Testis and ovary are called gonads in the human body.
2. Apart from producing gametes, gonads also secrete hormones.

Testis :

Testis secretes the male sex hormone, testosterone.
The secretion of testosterone is promoted by the leutinizing hormone of the pituitary gland.

Functions of testosterone :

a) It helps in the development of prostate glands and seminal vesicles.
b) It helps in the development of secondary sexual characters in males like beard, mustache and the low pitch voice.
c) It also promotes the growth of bones and muscles.

Ovary :

Ovaries secrete the female sex hormones Oestrogen and Progesterone.

1. Oestrogen :

a) It helps in the development of uterus, mammary glands and fallopian tubes in females.
b) Promotes the development of secondary sexual characters like characteristic hair growth and high pitched voice in females.

2. Progesterone :

a) It acts during pregnancy.

b) It promotes the growth of uterus. implantation of embryo and in the formation of placenta.

Posted Date: 8/29/2012 5:12:03 AM | Location : United States

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