Question

What is functions do animal hormone perform?

Answer 1

Hormones carry out their functions by evoking responses from specific organs or tissues that are adapted to react to minute quantities of them.

Answer 2

Functions of different animal hormones:

1️⃣Hypothalamus  secretes Gonadotropin Releasing Hormone. This acts on the pituitary hormone gland to release Gonadotropins like LH and FSH.

2️⃣Pituitary Gland secretes Follicle stimulating hormone (FSH) and Luetinising Hormone (LH). 
FSH stimulates development of follicles. The LH stimulates ovulation and maintenance of corpus luteum.

3️⃣Ovary secrete estrogen which stimulates growth of endometrium and uterus. It also helps in the development of secondary sexual characters.
The tertiary follicles change into corpus luteum which secretes progesterone. It helps in the development of endometrium and facilitates implantation.

4️⃣Thyroid glands secretes thyroxine which regulates basal metabolic rate, red blood cell formation.

5️⃣Pancreas secretes insulin, glucagon etc which regulates blood glucose level.

6️⃣Thymus secretes thymosin which plays an important role in immunity.

7️⃣Parathyroid gland that secretes parathyroid hormone that increases calcium level in blood.