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The Integumentary System & Disorders
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- Sprott Shaw College (SSC )
The integumentary sytem & Disorders 4 Pages.
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Besides the palms of the hands and the solesIntegumentary System of the feet, the entire body is covered with
hair. Hair in the nose, eyes, and ears protect
against dust, insects, and other foreign
& Disorders Notes objects from entering. Hair also helps retain
heat, especially on body parts such as the
head.
The integumentary system consists of skin, Sweat glands help the body regulate
hair, nails, and sweat and oil glands. The temperature and consists of water, salt, and a
integumentary system is the largest body small amount of waste. Sweat is secreted
system. through the pores in skin, and the body is
The skin has three layers: cooled as sweat evaporates.
Oil glands lie near hair shafts, and they
• Epidermis which is the outer layer
secrete an oily substance into the space near
• Dermis which is the middle layer
the hair shaft. Oil travels to the skin's
• Subcutaneous fatty tissue secures the surface, which keeps hair and skin soft, shiny
skin to the structures beneath it and also prevents the growth of bacteria on
The living cells of the epidermis contain 0the surface of skin.
pigment, which gives skin its color.
Integumentary/Skin Disorders
Urticaria
Urticaria (also known as hives) is a common
skin condition characterized by raised, usually
itchy wheals. It is commonly caused by an
allergic reaction to food, food additives, or
drugs. It usually disappears in a matter of
hours.
The skin has many different functions such
as: A wheal is a circular, red, spongy lesion that
evolves and changes over minutes to hours.
• It is the body’s protective covering. It is usually surrounded by an area of
• It prevents micro-organisms and other redness called a flare.
substances from entering the body.
• It prevents excess amounts of water • Wheals vary in size from 5mm or more.
from leaving the body. 0Treatments:
• It protects organs from injury.
• The nerve endings in the skin sense • Antihistamines
both pleasant and unpleasant • Topical lotions/creams
stimulation
• It helps regulate body temperature.
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