Chapter 6 Test
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
