Types of glands in the human body

The gland is a group of cells of the human body that makes substances (such as hormones), to secrete into the blood (endocrine system) or into body cavities or the outer surface (outer secretory glands). These glands are divided into two groups: External secretion, endocrine.

Types of glands

Depending on the method of secretion, there are two types of glands that depend on secretion:

1 – secretory outer glands

Are excreted in one place or part of the body through the respiratory tract, and most of the time release secretions on enzymes, while some are non-enzymatic and types of external secretory glands:

Salivary glands: That produces saliva, and this saliva has many functions.

B – pancreas: It excretes the enzymes amylase, trypsin and lipase. These enzymes digest carbohydrates, proteins and lipids, respectively.

C – sperm: The sperm produces hyaluronidase enzymes, which swim in the tissues of the uterus to reach the eggs, but also have the role of helping the drug to reach most of the body's internal tissues.

D – sweat glands: It excretes sweat that regulates body temperature and secretion.

E – sebaceous gland: The secretion of sebum in the skin and ears.

And – the unconscious glands: In the eyes, the water is filtered to moisten the eyes.

2 – endocrine

In the blood that passes through them, their secretions are called "hormones" and are classified in the endocrine system of the body's systems. There are two types of endocrine according to their location:

A – pituitary gland (hypothalamus): Is a gland located under the hypothalamus brain region. The gland stands out as a frontal and posterior gland and has specific secretions for each type:

– frontal pituitary gland: In the front, prolactin stimulates milk production in mothers and somatropin, a hormone that regulates the growth of body and tissue, lutein, which stimulates ovulation in women and the production of Testosterone in men, the thyroid stimulating hormone, which stimulates the production of hormones by the thyroid. T3 and T4 and adrenal cortex stimulating hormone, which stimulates the secretion of glucocorticoids and hormones of the mineral cortex, and follicle, which stimulate the signals of estrogen and progesterone formation by the female reproductive system.

– Posterior pituitary gland: It is located behind the pituitary gland and secretes vasopressin, which controls the loss of water through the kidneys, thus reducing the formation of urine and providing water in the body.Oxytocin refers to the uterus during the Pregnant women work after pregnancy, It stimulates the secretion of milk in the mother.

B – thyroid: Thyroid hormones produce T3 and T4

C – Thyroid gland "thyroid": Prothorams, both thyroid and parathyroid, are examples of types of glands in the neck.

D – Adrenal gland: They are located on the kidneys, contain outer cortex and areas in the spinal cord, and produce glucocorticoids and mineralocorticoids.

E-pancreas: The pancreatic gland secretes many hormones that control glucose metabolism in the body, allowing it to release secretions such as insulin, glucagon and somatostatin.

And – Kidney: Production of renin angiotensin (control of blood pressure).

G – pineal gland: Located in the brain, called the body's natural clock, melatonin is excreted (sleep hormone).

H – Tests: Testosterone, produced only in men to a large extent and at least in women, refers to male characteristics such as beard and heavy muscles.

I. Ovaries: The production of estrogen, progesterone, is secreted only by women and regulates the reproductive cycle.

All glands occupy distinct positions in the human body and regulate physiology primarily by receiving brain stimulation, so these brain glands secrete hormones that exit the brain and affect other glands distributed in different parts of the body. . Where secretions and hormones flow through the blood to targeted members after they are released.