Endocrine System

Endocrine system

The main function of endocrine glands is to secrete hormones into the bloodstream. Hormones are chemical substances that effect the activity of another part of the body e.t.c organ. In one word, hormones serve as messengers, controlling and coordinating activities throughout the body. Fundamentally, hormones control the function of entire organs, affecting such processes as growth and development, reproduction, and sexual characteristics. Although hormones circulate throughout the body, each type of hormone influences only certain organs and tissues. Most hormones are proteins.

The Hypothalamus and the Pituitary Gland

The hypothalamus is a tiny cluster of brain cells, which is located above the pituitary gland, which transports

It is a slot in the lateral wall and plays the role of the border of the thalamus and the hypothalamus.

Pineal gland

The pineal gland was once called the “third eye,” which was called in such way for many reasons, starting from its location deep in the center of the brain to its connection to light. The pineal gland produces melatonin, which helps to maintain circadian rhythm or sleep cycle and to regulate reproductive hormones.

Thyroid and Parathyroid glands

The thyroid is a butterfly-shaped gland located in front of the trachea and just below Adam’s apple in the neck. The thyroid’s main role in the endocrine system is to regulate person's metabolism, which is body’s ability to break down food and convert it to energy. People can have “fast” metabolism and others can have “slow” metabolism. The pituitary gland and hypothalamus both control the thyroid. When thyroid hormone levels drop too low, the hypothalamus secretes releasing Hormone (TRH), which alerts the pituitary to produce thyroid stimulating hormone (TSH). The thyroid responds by producing more

The organ has two thymic lobes. he thymus reaches its maximum weight during puberty. The thymus gland will not function throughout a full lifetime, but it has a big responsibility when it’s active. It is helping the body to protect the body from immune system when it turns against itself. Moreover, the thymus plays an essential role in the lymphatic system and endocrine system. Before birth and throughout childhood, the thymus is produces T-lymphocytes or T cells, a specific type of white blood cell that protects the body from certain threats, viruses and infections. The thymus produces and secretes thymosin, a hormone which is necessary for T cell development and production. Once person reaches puberty, the thymus starts to shrink slowly and become replaced by fat. Fortunately, the thymus produces all of person's T cells by the time person reach