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Integument
61 cards·by kbellings
Integument includes
skin, hair, setae, scales, feathers, horns
maintain homeostasis
function of integument
protective covering
function of integument
retard water loss
function of integument
regulate body temp
function of integument
house sensory recptors
function of integument
contain immune system cells
function of integument
synthesize chemicals
function of integument
excrete small amounts of waste
function of integument
displays of camouflage
function of integument
Layers of skin
dermis, epidermis, subcutaneous layer
hypodermis
subcuaneous layer
loose connective tissue
subcutaneous layer
adipose tissue
subcutaneous layer
insulates
subcutaneous layer
major blood vessels
subcutaneous layer
lacks blood cells
epidermis
keratinized
epidermis
thickest on palms and hands
epidermis
melanocytes provide melanin
epidermis
keratinocytes produce keratin
epidermis
rests on basement membrane
epidermis
stratified squamous
epidermis
layers of epidermis
stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
collagen and elastic fibers
dermis
1-2 mm thick
dermis
binds epidermis to underlying layers
dermis
muscle cells
dermis
nerve cell processes
dermis
specialized sensory receptors
dermis
blood vessels
dermis
hair follicles
dermis
glands
dermis
dermis layers
papillary, reticular
growths from epidermis
hair
root surrounded bo follicle below surface
hair
shaft above surface
hair
sebaceous glands, smooth muscle, nerve endings
hair
epithelial cells extend into dermis
hair follicles
arrector pili muscle
hair follicle
melanin
hair follicle
keratinized epidermal cells over ends of finger and toes
nails
part of nail
root, matrix, cuticle, lanula, body, free edge
uses of finger nails
protection, grasping
usually associated with hair follicles
sebaceous glands
absent in palms and soles
sebaceous glands
secrete sebum- waterproofs, softens skin, inhibits bacteria
sebaceous glands
sudoriferous glands open to epidermis or hair follicles
sweat glands
widespread in skin
sweat glands
origionates in deeper dermis or hypodermis
sweat glands
water, salts
eccrine glands
associated with hair and palms
apocrine glands
ear
ceruminous glands
breast
mammary glands
high body temp
hyperthermia
low body temp
hypothermia
varying amount of melanin
genetic skin color factor
varying size of melanin granules
genetic skin color factor
dilation of dermal blood vessels
physiological skin color factor
constriction of dermal blood vessels
physiological skin color factor
accumulation of carotene
physiological skin color factor