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LPN-BIO Integumentary System
Integumentary System
43
Biology
Undergraduate 1
09/30/2005

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Term
Skin
Definition
Known as the dermis or true skin
Term
Accessory Structures of the Skin
Definition
Hair, Nails Glands (sweat & oil)
Term
Subcutaneous Tissue
Definition
located below the dermis
Term
Cutaneous
Definition
skin
Term
Epidermis
Definition
Outside, top layer of the skin
Thin
Avascular
Term
Stratum Germinatium
Definition
(2) - Layered

Located below the Dermis
Term
Stratum Corneum
Definition
Contains (30) Layers
Term
Keratin
Definition
Hardens the cells

Waterproofing for the skin
Term
Dermis
Definition
Called "true skin"
Vascular
Contains nerve tissue
Hair & Nails are embedded here...
Term
Subcutaneous Layer
Definition
Found below the dermis
Not part of the skin
Term
Anchors the skin on

Insulates the body from extreme temp.
Definition
What is the function of the Subcutaneous Layer?
Term
Melanocyte
Definition
Secretes Melanin (pigment)
MSH(Melanin Stimulating Hormone)
Regulates the amount of skin color
Term
Albino
Definition
no melanin is present
Term
Vitiligo
Definition
Loss of melanin (pigment)
Patches of white skin
Term
Concentrated Melanin
Definition
Moles, Freckles & Birthmarks
Term
Melanoma
Definition
Skin Cancer
Term
Carotene
Definition
Yellow pigment
Term
Cyanosis
Definition
Decreased amounts of oxygen in the blood
Skin tone contains a blue hue
Term
Vasodialation
Definition
Blood vessels widen, get larger
Vessels open up
Term
Vasocontricter
Definition
Blood vessels get smaller
Vessels close up
Term
Ecchymosis
Definition
Another name for Bruise
Term
Jaundice
Definition
Birillium level is increased
Skin tone has a yellow hue
Term
Hair
Definition
Growth is influenced by sex hormones
Estrogen & Testosterone
Term
Arrector Pili
Definition
Muscle, surrounds the hair follicle
Term
Hirsuitism
Definition
Excessive growth of hair
Term
Alopecia
Definition
Hair loss
Term
Nails
Definition
Found at the end of digital and toes
Protects these structures from injury
Term
Sebaceous
Definition
Oil Glands
Term
Sebum
Definition
Oily substance
Secreted by oil glands
Term
Vernix Caseosa
Definition
Babies are born with a protective covering resembling cream cheese
Term
Sudoriferous
Definition
Sweat Glands
Located in the dermis and subcutaneous
Term
Apocrine & Eccrine
Definition
What are the two types of Sudoriferous Glands?
Term
Apocrine Gland
Definition
Associated with hair follicles
Found in the axillary and genital areas
Term
Eccrine Gland
Definition
Most numerous sweat glands in the body

Located throughout the body in areas such as the forehead, upperlip palms of hands & soles of feet.
Term
Cerumen
Definition
Ear wax
Term
Eliminates harmful substances
Retains water & electrolytes.
Protects internal structures.
Excretes small amounts of wastes (urea)
Acts as a gland (Synthesizes & Excretes)
Plays a sensory role, sensory receptors
Regulates Body Temperature
Definition
What are the Functions of the Skin?
Term
Radiation
Definition
Heat is loss from a warm object to the cooler air surrounding the warm object.
Term
Conduction
Definition
Heat is loss from a warm body to a cooler object in contact w/the warm body
Term
Convection
Definition
Heat is loss by air currents moving over the surface of the skin
Term
F = 98.6

C = 37.0
Definition
Describe normal body temperature in degrees Farenheit & Celcius.
Term
1st Degree Burns
Definition
Only the epidermis is involved

Painful, Red & Slightly Swollen
Term
2nd Degree Burns
Definition
Epidermis & Dermis is involved

Red, Painful, Blisters & Edema
Term
3rd Degree Burns
Definition
Known as "full thickness"

Epidermis & Dermis are destroyed

PAINLESS

Sensory receptors are destroyed
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