Functions of the Skin
The skin helps to regulate body temperature by doing what?
Sweating
What is alopecia?
Baldness
What is the first line of defence against microorganisms on the body?
Skin
Vitilgo results in what?
A loss of pigment in certain areas of the skin.
What happens to the melanocytes to increase melanin production and darken the skin?
Prolonged exposure to UV radiation from sunlight
The skin produces this pigment which is crucial in protection against harmful UV rays and phiysically dictates skin color
Melanin
What gives white hair its color?
The most common inflammatory disorder of the skin
Eczema
How many strata (layers) are found in thick skin?
5
What is the pigment of the brown-ish yellow spots called that often appear on older peoples hands?
Lipofuscin
What is one prupose of surface film?
Buffering irritants or blocking toxic agents.
What is the most common type of skin glands?
Sweat glands
What are the nipplelike neoplasms that transmit through direct contact with the skin?
Warts
Epidermis is which layer of skin?
The thinner layer on the surface.
What is the yellow pigment called?
Beta-carotene
Glands that regulate body temperature
Sudoriferous
What is cyanosis?
Blue discoloration most commonly under the nail bed due to a lack of oxygen.
What is the most common form of cancer?
Skin cancer
Keratinization involves what?
When cells in deeper layers of filled with keratin and moved to the surface.
What are the two groups of pigments of the body?
Eumelanin and pheomelanin
Shedding of the epithelial elements from the skin surface
Desquamation
On average, how many hairs does the human body have?
5 million
How many new cases of cancer are diagnosed evry year in the U.S.?
800 thousand
What is the name of "true skin"?
Dermis or corium
Why can an individual's basic skin color change temporarily?
When the volume of blood flowing through skin capillaries increases or decreases