Receptors

Question 1

B1

Answer 1

• heart (increase HR, contractility, conduction, automaticity)
• renin increase (increase BP)
• relaxation of GI smooth muscle

Question 2

A1

Answer 2

• found presynaptically
• decrease NE release (sedation)
• decrease pancreatic secretion
  decrease renin release

Question 3

B2

Answer 3

• blood vessel dilation
• more B2 skeletal muscle vasculature
• bronchiole relaxation
• sweating in horses
• increase NE release
• glycogenolysis and gluconeogenesis in liver

Question 4

B3

Answer 4

lipolysis

Question 5

M (sympathetic)

Answer 5

sweating in all other species except the horse

Question 6

Nn (sympathetic)

Answer 6

epinephrine increase

Question 7

M2

Answer 7

• heart (decrease HR, contractility, conduction, automaticity)

Question 8

M3

Answer 8

• blood vessel dilation
• no neural parasympathetic response (ONLY DRUGS)
• relaxation of GI sphincter
• increase GI tone and motility
• bronchiole constriction
• increase salivation
• uterine contraction

Question 9

Pregnancy receptor and responses

Answer 9

alpha = contraction
beta = relaxation (further along they have less beta receptors)
muscarinic = contraction