Monday, 6 April 2020

THYMUS GLAND -ADRENAL GLANDS - OVARIES

THYMUS GLAND

- near the heart.
- thymine
- formation of antibodies

PANCREAS

- It is an exocrine as well as an endocrine gland. Its endocrine part is known as Islets of Langerhans.
- Beta cells secrete Insulin which controls the amount of sugar in the blood. Its hyposecretion leads to Diabetes Mellitus.
- Alpha cells secretes Glucagon which increases blood sugar level.
- Gamma cells secrete Somatostatin which controls the functioning of alpha and beta cells.

ADRENAL GLANDS

- 2, on each kidney. Sugar metabolism, Salt retention, Sex hormone and Source of energy
- Outer cortex and inner medulla. - Adrenaline or epinephrine 3F Gland

GONADS - in addition to producing, sperms and ova, also produce hormones.

TESTES

- Its interstitial cells (Leydig’s cells) secrete testosterone
- Deficiency leads to sterility (eunuchoidism)

OVARIES
- Follicular cells producesOestrogen which controls the female secondary sexual characters.
- Corpus luteum secretes Progesterone which is essential for the completion of each menstrual cycle. - Relaxin at the end of gestation period, and helps in eas birth by relaxing the uterus and ligaments of the pelvic girdle.

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