Thermoregulation Flashcards
what is the problem with low temps on tissue
sheering
what is the Q10 effect
increase the temp of 10 degrees causes 2-3x increase in activity in genral across all rxns
which system is most sensitive to temperature increases
nervous
what dies the anterior hypothalmus regulate and how does it activate it
senses core (hot) temp activates SNS to sweat glands
what does the posterior hypothalmus sense and how does it do it
senses peripheral and deep thermoreceptors to cold
acivates sympathetic vasoconstroction of skin
piloerection via SNS
responds to temp, pain, taste, vision, pressure
TPR
what is TPR activated by
menthol, capasicin
the anterior hypothalmus activates what kind of receptor
muscarinic cholinerginic (M3) from heat via SNS
what happens when you are acclimated to the heat
sweat sooner, sweat more, more dilute
what are the receptors for anxiety sweating
alpha-1 receptors, appocrine sweat glands
blood flow is primarily controlled by what receptor
alpha 1
Non-shivering thermogenesis in newborns is stimulated by the release of
NE and EPI
how does thyroid hormone create heat
increases cellular metabolism
what receptor causes goose bumps
alpha 1
endogenous pyrogens stumulate production of what in the brain
prostaglandin E
