Nervous and integumentary system

By: Alondra Moreno

Integumentary system

The integumentary system protects the body, prevent loss of water, prevent infection, prevent injury, regulates temperature , eliminates waste, gather information, and produce vitamin D. It maintains the body's temperature by sweating and shivering. The skin is the largest organ of the body. The skin including nails, hair, sweat glands, and is sometimes called the integumentary system. Without the integumentary system we would not be prevented from all these problems and our body temperature would be all over the place.

these are the functions of the epidermis, dermis, and hypodermis which are the layers of the skin

hair- Hair is composed of cornified threads of cells that develop from the epidermis and cover most of the body

sweat and oil glands- Skin produces associated structures such as sweat glands and oil glands. Both groups of sweat and oil glands are in most of the body: eccrine glands are coiled ducts deep in the skin that connect to the surface. Eccrine glands secrete sweat, a mixture of 99 percent water and 1 percent salts and fats. In warm conditions with low humidity, perspiration secretion of sweat and  oil and evaporation cool the body.

Hair root- The hair root in a hair follicle is embedded beneath the skin. The hair shaft protrudes from the skin. Hair sheds and is replaced constantly during growth and rest phases. Hair has a protective function: eyebrows keep sweat from running into the eyes, nose and ear hairs filter dust from the air, and scalp hairs protect against abrasion and overexposure to sun rays.

Nervous system

The nervous system receives information about what is happening both inside and outside the body. It directs the way in which your body responds. Without the nervous system we would not to be able to feel any nerves like temperature, injuries, and etc.

these are the functions of the brain, nerves, spinal cord, and ganglia. Also it additional digestive tract of how it enterics the system.

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