Endocrine System

The endocrine system is one of the body's control system. It consists of endocrine glands that produce chemicals called hormones, and release them into the bloodstream. The hormones act as a chemical messengers and instruct specific areas of the body to carry out certain actions. The endocrine system consists of many glands scattered throughout the body. Glands are the same in men and women except for the reproductive glands.



I.Types of Glands of Endocrine System in Human Body

Pituitary gland: The pituitary gland is present just below the brain. The pituitary gland releases at least eight hormones. Some affect body functions directly, while the remainder stimulate other endocrine glands to produce hormones of their own. The pituitary gland has two parts or lobes. The anterior lobe produces and sends hormones around the body. The posterior lobe releases hormones produced in the hypothalamus.

Hypothalamus: Hypothalamus is a part of the brain that controls the pituitary gland. It plays an important role in collecting information from other regions of the brain and blood vessels passing through it

Thyroid gland; Thyroid gland is attached to the wind pipe in our body. It makes a hormone called thyroxine. It controls body's metabolic rate.

Parathyroid gland: There are four small parathyroid glands which are embedded in the thyroid gland. It secretes hormone called parathormone. It regulates calcium levels in blood.

Thymus gland: Thymus gland lies in the lower part of the neck and upper part of the chest. Thymus gland secretes thymus hormone. It stimulates development of immune system.

II.Types of Glands of Endocrine System in Human Body

Adrenal gland: There are two adrenal glands, which are located on the top of two kidneys. The adrenal gland secretes adrenaline hormone. It helps deal with stress.

Pancreas: The pancreas is located just below the stomach in the body. Pancreas secretes the hormone called insulin. It releases hormones that control blood glucose level

Testes: Testes is present only in males. It releases male sex hormones called testosterone. Its main function is to control the development of male sex organs and male features.

Ovaries: Ovaries are present only in females. Ovaries secretes two female sex hormones called oestrogen and progesterone. Its function is to control the development of female sex organs and female features and help in pregnancy.