Human endocrine system - Functions & Overview

Definition Of Endocrine System

The endocrine system is defined as the system of glands that secrete their secretion directly into the bloodstream and not through a duct. These endocrine glands control the body system and produce hormones that help regulate all the body functions of our cells and tissues.

Hormones are defined as the chemical that affects the body's functions, which range from hunger to reproduction to even the growth of the body. The hormones also control the emotions and behaviour of a human being. When we talk about exocrine glands in our body, they secrete their secretion in the ducts. These usually contain earwax and sebaceous glands that usually secrete oil, and sweat glands that usually secrete sweat.

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This Story also Contains

1. Definition Of Endocrine System
2. Major Endocrine Glands:
3. Hormonal Regulation
4. Recommended video on Endocrine System

Endocrine glands are a group of ductless glands that control the body. They usually act on the body by secreting some of the chemical substances that are termed "hormones." Hormones usually act on all the nearby tissues of the body from where they are secreted, and they are transported through the bloodstream to act on the specific target organs. Human endocrine systems use hormones to keep track of all the coordinated systems in the body. These contain many glands located in the human system and at many different locations. Endocrine glands usually coordinate with the neural system of the human body and help with control and coordination activities.

Major Endocrine Glands:

There are several diverse glands in the endocrine system, each having specific kinds of hormones secreted.

Pituitary Gland:

Also known as the master gland, since it controls the other endocrine glands.

Anterior Pituitary:

It secretes many hormones like growth hormone and prolactin.

Posterior Pituitary:

Secretes hormones like antidiuretic hormone and oxytocin.

Thyroid Gland:

It controls the metabolic process with the help of thyroid hormones.

Adrenal Glands:

T produces hormones related to the response to stress and metabolism

Adrenal Cortex:

It secretes corticosteroid and androgens

Adrenal Medulla:

It secretions adrenaline and noradrenaline

Pancreas :

It regulates blood sugar levels through insulin and glucagon

Gonads:

The gonads produce sex hormones; in males, it is testosterone while in females it is oestrogen and progesterone

Hormonal Regulation

Hormones regulate various physiological activities.

Metabolism:

Thyroid hormones control the rate of metabolism

Growth And Development:

Growth and development is controlled through the growth hormone

Stress Response:

The reaction of the body to stress is controlled by the adrenal hormones

Recommended video on Endocrine System