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What are the general functions of the skin and integumentary system?
2. Regulation of Body Temperature
4. Excretion of Wastes
5. Vitamin D Production
____ membranes are found lining the nasal cavity, the oral cavity, respiratory tracts and digestive tracts.
What is difference between serous and mucous membranes?
Serous membranes secrete a watery fluid, while mucous membranes secrete a thicker, stickier fluid
What is the subcutaneous layer?
layer of connective tissue (adipose and LCT) that binds the skin to underlying structures.
List the layers of the epidermis start from the most superficial layer.
Which layer of the epidermis is only found in the palms of the hands and the soles of the feet?
Which layer of the epidermis consists of only dead cells that have been replaced by keratin?
Why do cells of the epidermis die as they are pushed closer to the surface?
The cells get farther and farther away from their blood supply.
How is the cellular division of the epidermis related to the amount of pressure the cells receive.
More pressure equals higher rate of cellular division
What are four items that affect the color of an individuals skin?
What is the function of the hypodermis?
Insulation, Cushion, and Connecting the skin to underlying structures
What accessory organ is responsible for producing goose flesh?
Contraction of arrector pilli muscles
Which sweat glands secrete a sweat that bacteria like to metabolize and produce strong odors?
Apocrine Sweat Glands
How does the skin regulate body temperature when the body is too hot?
dialation of dermal blood vessels and sweating
How does the skin regulate body temperature when the body is too cold?
constriction of dermal blood vessels and apilli muscle contraction
How does the skin protect the body?
prevents loss of body fluids
protects against physical damage and UV radiation
protects against invasion of microorganisms
How does the skin regulate body temperature?
Constriction or Dialation of dermal blood vessels
Sweating or shivering
Why are light skinned people more likely to develop skin cancer?
They have less melanin to absorb UV radiation
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