معلومات عامة

General information about the human body

The human body The human body is the physical core of the human organism, which is made up of cells

living and external materials, and this body is organized through tissues, organs and systems, as it consists of

Specific tissues and systems such as the heart, blood vessels, blood, glands, muscles, and various organs,

In addition to containing many biochemical components such as protein, carbohydrates, fats,

DNA, vitamins, etc.

body organization

The cell is the basic living unit in the human body, as the body is made up of nearly trillions of cells

Of which are capable of growth, metabolism and response to stimuli, although there are approximately 200 species

Different types of cells, but they can be grouped into four basic categories:

Epithelial tissue: The tissue that covers the surface of the body

Which covers the internal organs, body cavities and passages.

Muscle tissue: any tissue capable of contracting and forming the muscles of the body.

Nervous tissue: which conducts electrical impulses and makes up the nervous system.

Connective tissue: consisting of widely spaced cells and large amounts of matrices that

It is located between cells and connects the structures of the body together.