first layer of skin
epidermis
second layer of skin
dermis
third layer of skin
hypodermis (also called subcutaneous tissue layer)
D
skin cells absorb ultraviolet rays to produce vitamin ___
Merkel cells
mechanoreceptors that can detect mechanical sensory
information in the form of light touch and vibration
Meissner's corpuscles
mechanoreceptors in the dermis, can detect light touch
and vibration
nociceptors
sensory receptors that detect pain
pacinian corpuscles
detect mechanical sensory information such as pressure
applied to the skin
thermoreceptors
detect hot and cold
exocrine glands
have ducts and secrete their contents onto an epithelial
surface
multicellular glands
, set within epithelial tissue and release their contents
through a duct onto a surface
sebacous glands
produce sebum
sebum
oily substance secreted by sebaceous glands, helps keep
skin and hair from drying out and inhibits growth of harmful
microorganisms
Surdoriferous Glands
produce sweat in almost every part of the skin
perspiration
release of sweat
thermoregulation
release of heat from the body through sweat
what kind of epithelium is the epidermis made up of
stratified squamous
where does the epidermis receive nutrients from
basement membrane
4 distinct layers of epidermis
stratum corneum
stratum granulosum
stratum spinosum
stratum basale
cells of stratum basale are constantly ______ to
rebuild the skin
dividing
the most superficial layer of the epidermis is dead
true
epidermal ridges
downward waves of epidermis; fingerprints
melanocytes