autonomic physiology 2

Question 1

what controls the activity of the autonomic nervous system?

Answer 1

1- autonomic reflexes e.g. baroreceptors

2-central control– hypothalamus

Question 2

how could things go wrong?

Answer 2

1- receptors release non-adrenergic, non-cholinergic neurotransmitters
2-receptors co-release neurotransmitters

Question 3

different types of responses relating to innervation?

Answer 3

1-antagonist dual innervation e.g. heart rate
2-single innervation with dual function e.g. blood vessels
3- dual innervation with complementary action e.g. reproductory system

Question 4

what do Beta-2 receptors tend to do?

Answer 4

they tend to relax the smooth muscle

Question 5

useful use of these innervations?

Answer 5

agonist drugs such as salbutamol.
acts of Beta-2 receptors which dilate airways, don’t act of heart rate
antagonist drugs such as atonal
acts of Beta-1 receptors- decreases heart rate
doesn’t act on airways