What are the basic tissues of the human body? What are the four basic tissues of the human body

The four major tissues of the human body are: epithelial tissue, connective tissue, muscle tissue, and nerve tissue.

1. Epithelial tissue, also known as epithelium, is an important structure that is lined or covered on other tissues. consists of dense epithelial cells.

and a small amount of interstitial composition. The structure is characterized by tight cell binding and little interstitium. It usually has the functions of protection, absorption, secretion, and excretion. Epithelial tissue can be divided into two categories: overlying epithelium and glandular epithelium. Epithelial tissue is the largest tissue in the human body.

2. Connective tissue is composed of cells and a large number of intercellular fluids, which include matrix, filamentous fibers and interstitial fluid, which are of great functional significance. The cells are scattered within the interstitium of the cells and have no polarity in distribution.

3. The basic tissues of animals composed of specially differentiated muscle cells. There is a small amount of connective tissue between muscle cells, capillaries and nerve fibers. Muscle cells are elongated in shape, so they are also called muscle fibers. Cell membranes of muscle cells.

It is called the sarcosa, and its cytoplasm is called sarcoplasm.

4. Nervous tissue is the nervous system.

The main components are nerve cells and neuroglial. Nerve cells are the structural and functional units of the nervous system, also known as neurons.

The human body is composed of organic matter and inorganic matter, cells and interstitium are composed of tissues, tissues are composed of organs, organs with similar functions are composed of systems, and the human body is composed of eight systems. Among them, there are four major tissues of the human body.

They are: epithelial tissue.

Connective tissue, musculature, nervous tissue.

1. Epithelial tissue. It is composed of densely packed cells with minimal interstitium, including overlying epithelium and glandular epithelium.

2. Connective tissue. It is composed of cells and a large number of interstitial cells. The interstitium consists of a matrix in a homogeneous state and filamentous fibers. Connective tissue includes intrinsic connective tissue, cartilage, bone, blood, lymph, and bone marrow.

3. Muscle tissue. Muscle tissue is made up of muscle cells and muscle homogenizers. It contains a large number of muscle filaments, can perform contractile movements, and is mainly divided into skeletal muscles.

4. Nervous tissue. Nerve tissue is made up of nerve cells and glial cells. Constitute.

1. There are four basic tissues of the human body, namely epithelial tissue composed of epithelial cells and a small amount of interstitium; Connective tissue is made up of cells and a large number of intercellular stromium; muscle tissue made up of specially differentiated muscle cells; Nervous tissue made up of nerve cells and glia.

2. The human body is composed of organic matter and inorganic matter, the tissue is composed of cells and interstitium, the organ is composed of tissue, and the organ with similar function is composed of the sliding system, which is composed of eight systems and a human body.