Glands in the body whose function is to secrete hormones

 There are many glands in the human body, which regulate the various functions of the body and help cells perform the biological functions necessary for their survival, and there are a large number of glands in the body whose function is to secrete hormones directly into the blood without the presence of channels in what is known as endocrine glands or glands Endocrinal Glands.

Glands in the body whose function is to secrete hormones

Hormones are chemicals that are secreted by endocrine glands into the blood directly without the need for channels, until they reach specific cells in the body, as these cells contain special receptors for these hormones, and these hormones may reach more than one member of the human body, so they It works on regulating the relationship between the different parts of the body so that there is no malfunction in the body's functions.

Examples of glands in the body whose function is to secrete hormones

The endocrine system consists mainly of the pituitary gland and hypothalamus in the brain, the thyroid and parathyroid glands in the neck, the adrenal glands above the kidneys, and the pancreas, along with a large number of other hormone-producing organs such as the testes, ovaries, and kidneys.

the pituitary gland

The pituitary gland is located in the brain and is the most important gland in the endocrine system. It secretes hormones that regulate the work of other endocrine glands. Examples of hormones secreted by the pituitary gland are:

• Growth hormone helps the normal growth of the human body, along with several other functions, and a deficiency of this hormone in childhood leads to dwarfism.
• Thyroid stimulating hormone regulates the functioning of the thyroid gland to control the levels of thyroxine in the body.
• Luteinizing hormone and follicle-stimulating hormone, these two hormones regulate the secretion of male and female hormones such as progesterone, estrogen, and testosterone.
• Oxytocin is a hormone that helps contract the uterine muscles at birth.
• Antidiuretic hormone.
• The hormone prolactin works on the growth of the mammary glands in the breasts and regulates the production of milk when breastfeeding.

Pineal gland

The pineal gland secretes the hormone melatonin, which helps the body relax and prepare for sleep.

Thyroid

The thyroid gland is located in the middle of the neck and works to manufacture the hormone thyroxine, which in turn regulates the body's metabolism and the production of energy from food.

By the thyroid gland - also - the hormone calcitonin is secreted, which reduces the calcium in the blood by inhibiting the work of cells that break down bones (osteoclasts), so this hormone helps protect against osteomalacia.

A malfunction of the thyroid gland may occur, the secretion of thyroxine may increase, the secretion of thyroxine may decrease (Hypo-thyroid), and an enlargement of the size of the thyroid gland may occur, which is referred to medically (in English: Goiter).

parathyroid glands

There are four parathyroid glands located on both sides of the thyroid gland, and these four glands secrete the parathyroid hormone, which works to regulate calcium and phosphorous levels in the body in cooperation with the hormone calcitonin that is secreted from the thyroid gland And vitamin D.

adrenal glands

The adrenal glands are located above the kidneys, and these glands in the body secrete a group of important hormones such as adrenaline (the neurotransmitter of most of the nerve endings of the sympathetic system), which increases the heart rate and increases the force of the heart's pumping of blood.

These glands also secrete the hormones aldosterone, which regulates the rate of sodium and potassium in the body, while cortisone helps regulate the immune functions of the body and maintains blood pressure at normal rates by maintaining sodium levels.

The adrenal gland also secretes sex hormones that serve to display secondary male and female characteristics.

pancreas

The pancreas is one of the most important glands in the body with a dual function. The pancreas is considered an endocrine gland because it secretes hormones directly into the blood. It is also a ductal gland that secretes digestive enzymes into the pancreatic duct.

The most important hormones secreted by the pancreas are insulin and glucagon, which regulate blood sugar levels at normal rates. Diseases of the pancreas lead to diabetes, which many people suffer from.

There are also a large number of organs in the body whose function is to secrete hormones, such as the kidneys that secrete the hormone erythropoietin, which stimulates the bone marrow to produce blood. Where they secrete sex hormones.