Chapter 6 Test

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the part of the hair from the surface into the dermis is the

root

melanocytes lie within the ______ of the sjub

stratum basale and upper dermis

hair comes from which layer

stratum basale of the epidermis

the protective dead layer of cells of the outer epidermis is called

stratum corneum

where is the greatest amount of keratin found

stratum corneum

adipose tissue is the most abundant in the _____ layer under the skin

subcutaneous

sweat glands can also be called ___ glands

sudorigerous

what actually controls and maintains body temperature

the hypotalamus

what is the main factor in perserving body heat

the prescence of adipose

the strength of the dermis is due to

the prescence of collagen fibers

what is a major factor that protecrs skin from the damaging effects of sunlight

the presence of melanin

the part of the hair bellow the surface of the skin is called

the root

the color of red hair is due to

trichosiderin

the greatest source of body heat is through

contraction of skeletal muscles

the skin is called the ___ membrane

cutaneous

cells that surround melanocytes may contain more melanin than the melanocytes because of the process of

cytocrine secretion

the epidermal ridges (fingerprints) are caused by

dermal papillae

most of the sensory fibers and structures are located in the ___ region

dermis

it is the body's _____ glands that respind to higher body temperature and release water to the skin surface

eccrine

hair and fingernails are derived from the ___ cells

epidermal

skin cancer comes from

epithelial cells

the most easily regulated loss of heat through the skin is by

evaporation

a group of cells that surrounds the developing hair is called the

follicle

the body raises temperature by

full body shivering

the stratum basale is also called the stratum

germinativum

a ___ is a procedure that uses skin from a deceased person to treat a burned area

homograft

the subcutaneous layer can also be referred to as the

hypodermis

calluses are thickened areas that are formed in response to an

increase in friction or pressure

the main tissue in the dermis is

irregular dense connective tissue

tactile corpuscles respond to a stimuls of _____

light touch

the most active growing region of the nail is the

lunula

within nails, the most rapidly dividing cells can be found in the ____

lunula

the darkness of hair is due mainly to

melanin concentration

cyanosis usually is the result of a reduction in

oxygen levels

the ___ structures are associated with detecting deep pressure within the skin

Pacinian corpusucles

what does melanin do

absorbs harmful radiation

the prescence of ___ is an indication of being in the hypodermis

adipose tissue

goose bumps in the skin are caused by contraction of the ___ in response to cold or emotions

arrector pili muscles

an ____ is the transplanting of one's own skin from an unburned region of the body to a burned area

autograph

The pigment producing melanocytes are found in the ____ layer

basale

the youngest cells would be found in the stratum

basale

the ____ separates the epidermis from the dermis

basement membrane

the pigment ___ found in vegetables can inpart a yellow or orange color to the skin

carotene

the yellowish color of some persons skin is due to

carotene

modified sweat glands, called______ gland, secret wax in the ear canal

ceruminous


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