Lecture 31: Autonomic control

Question 1

What are examples of metabotropic receptors?

Answer 1

• Alpa adrenergic
• Beta adrenergic
• Muscarinic cholinergic

Question 2

What is an example of ionotropic receptors?

Answer 2

• nicotinic cholinergic

Question 3

In the parasympathetic NS the 1st neuron terminal releases ACh, what receptor does it bind to?

Answer 3

Nicotinic cholinergic receptor

Question 4

In the parasympathetic NS the 2nd neuron terminal releases ACh, what receptor does it bind to?

Answer 4

Muscarinic cholinergic receptor

Question 5

In the sympathetic NS, the 1st neuron terminal releases ACh, what receptor does it bind to?

Answer 5

• Nicotinic cholinergic receptor

Question 6

In the sympathetic NS, the 2nd neuron terminal releases Ne, what receptor does is bind to?

Answer 6

alpha/beta adrenergic receptor

Question 7

A neuron that releases ACh has what type of receptor?

Answer 7

• Cholinergic receptor
  Parasympathetic
  1st neuron - nicotinic cholinergic
  2nd neuron - muscarinic cholinergic

Question 8

A neuron that releases Ne has what type of receptor?

Answer 8

Adrenergic receptor

• Alpha
• Beta

Question 9

What is dual innervation?

Answer 9

When an organ or tissue is influenced by both sympathetic and parasympathetic activity

Question 10

Parasympathetic and sympathetic act in

______________ to each other

Answer 10

opposition

Question 11

What are some examples of dual innervated organs & tissues?

Answer 11

Bladder
Genital
GI tract
Heart
Bronchi
Iris and lens

Question 12

What are ionotropic receptors?

Answer 12

• contain and ion channel
• Excitatory
• nicotinic cholinergic

Question 13

What are metabotropic receptors

Answer 13

• linked to messengers
• Excitatory & inhibitory
• adrenergic
• muscarinic cholingeric

Question 14

What are some examples of organs which are innvervated by the sympathetic nervous system only?

Answer 14

• Sweat glands
  Blood vessels
  Adrenal medulla