function Flashcards
(16 cards)
6 functions intergumentary system
protection thermoregulation Vit D production sensation absorption excretion
5 ways skin protects us
physical barrier sebum anti-microbial sweat - contains lysozyme desquamation removes microbes nerve sensors induce protective reflexes
2 control centres for body temp are
hypothalamus
vasomotor centre of medulla oblongata
what controls sweat glands/BVs to regulate body temp
ANS
other heat producing organs are
liver
muscles
digestive tract
heat loss also via
respiration
heat maintenance via which tissue
adipose - insulation
what is a pyrogen
fever-inducing substance
normal body temp
36.7 C
hypothermia
rectal temp below 35 - death @ 25C
hyperthermia
above 37.5, death @44C
how is vit C synthesized
UV light activates Vit D precursor in skin
kidneys turn precursor to CALCITRIOL
effect of calcitriol on body
acts as hormone
increases uptake of calcium and phophorous in blood
supports bone density
vit D stored in
liver
skin absorbs
lipid-soluble molecules Vits A, D, E, K meds - corticostaeroids O2, CO2 toxins
skin excretes
salt
water
urea
ammonia
