6-12 Autonomic Pharmacology Flashcards
1
Q
ENS motility
A
myenteric / auerbach’s plexus
2
Q
ENS ion and fluid transport
A
submucosal / meissner’s plexus
3
Q
only symp innervation
A
hair follicle thermoregulatory sweat gland liver adrenal gland kidney
4
Q
similar rather than opposing effects
A
salivary glands
5
Q
mydriasis can be caused by both muscarinic antagonism and alpha1 stimulation. what is the difference?
A
muscarinic antagonism displays cycloplegia (parlysis of accomodation)
6
Q
blood pressure =
equation
A
BP = TPR x CO
7
Q
CO =
equation
A
HR x SV
8
Q
explain reflex bradycardia
A
increase TPR by stimulating A1 receptors
–> decrease in HR (to maintain BP)
9
Q
explain reflex tachycardia
A
decrease in TPR due to lack of stimulation by A1 receptors –> reflex tachycardia to maintain the BP steady
