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Kaplan Qbank USMLE



Author2 Posts
  #1

when we sweat to regulate the body temperature it is via ACh. But in case of emotional perspiration it's via norepinephrine! It's interesting, isn't it?


  #2

the sweat glands are divided in 2 categories: apocrine and eccrine (the second type develop after puberty and have sexual function if I recall corectly)

the apocrines are divided in 2 categories: the ones that are implicated in thermoregulation which have muscarinic receptors (which are activated by Ach) and the ones that secrete in stress periods which have alpha receptors and are activated by Nepinephrine. (both sympathetic)

remember that due to the M colinolythic effect of atropine you get the inhibition of perspiration ("dry as bone") as a side effect and due to the iritation of the sympathetic superior cervical ggl in apical lung cancer you get the Claude Bernard Horner sdr. in which the poor man has the inabillity to sweat on the afected side

___________________
"Love is the only inflamation of the heart that drains in the vagina" (translation after Dr Petre Florescu, Professor of Pathology, UMF "Iuliu Hatieganu", Cluj Napoca







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