the study of the structure and composition of the skin tissue
skin histology
the study of the functions of living organisms
physiology
the skin is also refererred to as the:
integumentary system
the skin is thickest on
palms of hands and soles of feet
skin is thinnest on
eyelids
healthy skin is:
slightly moist
soft
smooth
somewhat acidic
skin on the average adult weighs _________ pounde and averages an area of ________ Square Feet
8-10 pounds
22 square feet
each inch of skin contains approximately:
millions of _______
15 feet of ________
12 feet of ________
650 _______
100 __________
65 _________
1,300 _________
155 ________
12 ____________
millions of cells
15 feet of blood vessels
12 feet of nerves
650 sweat glands
100 oil glands
65 hairs
1,300 nerve endings
155 pressure receptors
12 cold and heat receptors
the six primary functions of skin are:
protection
sensation
heat regulation
excretion
secretion
absorption
____________ on the epidermis gives protection from external factors
Sebum
The ____________ is the protective barrier made up of sebum, lipids, sweat and water that form a hydrolipidic film
acid mantle
The acid mantle has an average pH of _______
5.5
The barrier function protects us from irritation and intercellular __________ (TEWL)
transepidermal water loss
__________ are substances that contribute to the barrier function of the epidermis
Lipids
_________ make up the intercellular cement between epidermal layers
Lipids
_________ is the pigment that protects us from the sun
Melanin
Sweat glands are also known as
Sudoriferous glands
Oils are produced by the
Sebaceous Glands
The epidermis is composed of 5 layers
Stratum Corneum
Stratum Lucidum
Stratum Granulosum
Stratum Spinosum
Stratum Germinativum
"Col. Luke Gave the Seargent Germs"
Stratum corneum aka:
the horny cells
stratum lucidum aka
the clear cells
stratum granulosum aka
the grainy cells
stratum spinosum aka
the spiny cells
stratum germinativum aka
the germination or growth layer
the dermis consists of 2 layers
Papillary layer and reticular layer
dermal papille is aka
finger prints
below the reticular layer is the
subcutaneous layer
a nail is aka
onyx
The body produces 2 types of melanin __________ which is red/yellow in color and _________ which is dark brown to black in color
pheomelanin
eumelanin
_______ and _________ are the fluids that nourish the skin