15 thermoregulation Flashcards

1
Q

3 mecanismes d echange de la chaleur? chéacun a 2 sous-mec

A
rayonnement
*50% des pertes en infrarouge
* reception de chaleur coup de chaleur
c/c
*conduction -- object contact
*convection -- l air ambiant / mvmnt de lair ++++
evaporation
*transpiration
*perspiration
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2
Q

diff entre transpiation et ? ?

A

-perspiration… insensible, cte, sans sudation (respiration ou cutanee..)

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3
Q

voies de signalisation – 2 composants et 2 sojus compos?

A
au niv de l hypothalamus
- centre de thermolyse / cd genese
recepteurs
- superficiel cutanee..
- profond .. hypot ME  visceres
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4
Q

touche qqch de chaud? qulle voie? me froid externe? quelle voie asa7biyaaa

A

-chaud voie RUFFINI

froid voie de Krauss

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5
Q

4 niveaux d action pr thermogenese?

A
contracture m
comportement
vx //vasoconsstriction et redistrubitin vers capp profonds..... veines profondes recoivent chal par conntre xcour des arteres
**MS catech
**thymus HT
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6
Q

3 niv pr thermolyse

A

-comport
vasodil et redist (conduc, conv, rayonnement)
trans/^pres

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