Skin completely covers the outer part of the body.
1) Epidermis
2) Dermis
3) Epidermis
1) Epidermis
The epidermis is composed of many layers of cells that gradually change and become dull and dry in layers. Fingernails and toenails are formed from this epidermis. The base of the nail is pink in color. Because they are located right above the blood vessels or veins.
2) Dermis
As the cells of the dermis become old, they gradually move up to the epidermis and replace the dead cells. Therefore, the dermis is constantly supplying cells to the epidermis. All the blood vessels and nerves of the skin are located in this dermis and hair follicles and glands are located within this dermis. The following substances are located in the dermis:
3) Hair
Hair grows from tiny hair follicles or hair cells located inside the skin. Diseases that cannot enter the body through the skin, often take shelter in these hair cells. Thus the skin infection starts.
4) Oil Glands
A type of oil gland is attached to the hair follicle or follicle which helps to keep the skin soft and moist. When the mouth of these oil glands is closed, red circles appear on the skin of the face or on the surface of the body. This red wheel is called "Sister". The oil glands may become infected.
5) Sweat Glands
Small ducts attached to sweat glands extend to the surface of the skin. These sweat glands help regulate body heat by secreting a fluid on the skin. This fluid is called sweat or sweat. Sweat contains a mixture of water and salt. It evaporates into the air and has a cooling effect on the body.
6) Blood Vessels
Thousands of tiny blood vessels are seen in this intestine. These are known as capillaries. These capillaries supply nutrients to the skin and help regulate body temperature by doing
7) Nerves
The skin contains fine nerves. These nerves carry messages about the environment to the brain. Nerve endings can carry messages of temperature, touch, pressure, pain, and changes in position, and command appropriate responses from the brain.
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