15 terms

integumentary system

the two functional components of the integument include
cutaneous membrane and accessory structures
the skin maintains normal body temperature by regulating
heat gain or loss to the environment
the structures of the integument system involved in protection is/are
hair, skin, and nails
all of the following are functions of the integumentary system except
synthesis of vitamin A
the link between the integument and the nervous system is in the form of
receptors in the skin
the layers of the epidermis where mitotic divisions occur are
germinativum and spinosum
epidermal cells in the stratum spinosum and germinativum function as chemical factories in that they can convert
steroid precursors to vitamin D
the lower epidermal layers of the skin are responsible for
vitamin D production
keratin, a fibrous protein, would be found primarily in the
stratum granulosum
the area where the skin is thick such as the palms of the hands and the soles of the feet, is called the
stratum lucidum
differences in skin color between individuals relfect
levels of melanin synthesis
the two basic factors interacting to produce skin color are
blood circulation and pigment
darker skin color is produced as a result of
active melanocytes
some people only "burn" when exposed to the sun because
they do not have a "tanning" gene
the pigment which absorbs UV radiation before it can damage mitchondrial DNA is