lecture 16

Question 1

alpha adrenergic receptors

Answer 1

• eyes: dilate
• cardio: constriction of smooth muscle
• gastro: constriction of GI sphinters, decrease rate and strength of smooth muscle contraction
• endo: promote high blood glucose, decrease insulin release

Question 2

beta 1 adrenergic receptors

Answer 2

• cardio: increase heart rate and contractile force of heart
• GI: increase secretion of saliva

Question 3

beta 2 adrenergic receptors

Answer 3

resp: dilation of bronchial smooth muscle to open airways
GI: decrease motility of smooth muscle
end: increase breakdown of glycogen to glucose

Question 4

muscarinic receptors (M)

Answer 4

• eye: constriction
• cardio: slows heart rate, vasodilation of blood vessels
• resp: constriction of bronchial smooth muscle
• GI: increase saliva, motility of smooth muscle, and digestive enzymes
  -endo: increase insulin and storage of glycogen
  -sweat: increased
• renal: contraction of bladder wall