integumentary system

list skin layers in order (superficial to deep):

stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale

stratum basale

mitotically active layer

stratum spinosum

contains dendritic (langerhans) cells for immunity

stratum lucidum

only in palms of hands & soles of feet

stratum corneum

very thick layer of dead cells

list the 3 things in the skin of the scalp:

NO stratum lucidum; sudoriferous gland (sweat/eccrine); sebaceous gland (oil/holocrine)

list glands in armpit

apocrine sudoriferous gland: malodorous sweat glands (armpit, anogenital); sebaceous gland + eccrine/merocrine sudoriferous gland

list 3 parts of foot + function

stratum lucidum (only exists in thick skin) - palms of hands/soles of feet; meissner’s corpuscle - fine touch & vibration; pacinian corpuscle - deep pressure & vibration

skin of foot; thick stratum corneum, stratum lucidum(thick skin), blood vessels, meissner’s corpuscle, pacinian corpuscle, adipose tissue

sebaceous gland, eccrine sudoriferous gland, apocrine sudoriferous gland, pacinian corpuscle, ruffini endings, arrector pili muscle, meissner’s corpuscle, hair shaft, hair root

skin of armpit; sebaceous gland, eccrine/merocrine sudoriferous gland, apocrine sudoriferous gland (malodorous sweat glands)

skin of scalp; sebaceous gland (holocrine), hair root, arrector pili muscle, sudoriferous gland (eccrine), hair bulb, hair shaft

stratum corneum; stratum lucidum; stratum granulosum; stratum spinosum; stratum basale