Chapter 7 skin structure, growth and nutrition Flashcards
The largest organ of the human body is the
skin p157
The medical branch of science that deals with the study of the skin, its functions and diseases, is
dermatology
The surface of healthy skin is slightly
acidic pg 157
what is not an appendage of the skin?
pineal gland pg 157
the outermost and thinnest layer of the skin is the
epidermis p157
The epidermis is made of how many layers of the skin
5 p157
The layer of skin that we see and is treated by the practitioner is the
corneum pg157
The clear, transparent layer just under the stratum corneum that consists of small cells through which light can pass is the
stratum lucidum pg 157
The deepest layer of the epidermis, the basal cell layer, is also known as
stratum germinativum pg 158
The stratum germinativum is composed of several layers with special cells that produce a dark skin pigment called
melanin pg. 158
The underlying or inner layer of the skin,which is also called the derma corium, cutis, or true skin, is the what?
dermis pg.158
The muscle that causes goose bumps when a person is frightened or cold is the what?
arrector pili muscle pg. 158
The dermis layer is made up of two layers, which are the what?
Papillary and recticular pg. 159
The top of the papillary layer where it joins the epidermis is the what?
Epidermal-dermal junction pg.159
The layer of the dermis that houses the nerve endings which provide the body with the sense of touch is found in the what?
Papillary layer pg.159
The deepest layer of the dermis that supplies the skin with oxygen and nutrients is the what?
Reticular layer pg. 159
Fatty tissue found below the dermis is what?
Subcutaneous tissue pg.159
what nerve fibers carry impulses from the brain to the muscles?
motor pg.160
The tiny grains of pigment deposited in cells that provide skin with its color are what?
Melanin pg. 160
The melanin produced by the body that is red and yellow in color is what?
Pheomelanin pg. 161
Oil glands that are connected to hair follicles are also called what??
sebaceous glands pg 163
When sebum hardens and the sebaceous duct becomes clogged, the pore impaction that is formed is a what?
comedo pg. 163
What is a function of the skin?
sensation, excertion, heat regulation
what enables the body to properly absorb and use calcium?
vitamin d pg.167
Water is the number one nutrient of the body and composes what of the bodys weight?
50 to 70 percent pg.167
Continued pressure on any part of the skin causes it to thicken and develop into a (n)
Callus
The epidermis layer of the skin is also known as the
Cuticle layer
The fibrous protein that gives skin its flexibility and helps skin regain its shape after being expanded is
Elastin