5. ANS I

Question 1

Describe the Ganglion.

Answer 1

-The point of contact between the first and second efferent neuron.
-It is a group of nerve cell bodies outside the CNS.

Question 2

Describe the differences in ganglion between the para and sympathetic nervous system.

Answer 2

The distance between the two nerves is longer in the para and shorter in the sympathetic.

Question 3

What Drug causes Excitatory transmission at all autonomic ganglia and what receptor does it effect.

Answer 3

Acetylcholine acting on nicotinic receptors.

Question 4

What drug is used for transmission at the postganglionic sympathetic synapse and what receptor it effects.

Answer 4

Usually noradrenaline acting on A or B adrenoceptors.

Question 5

What drug is used for transmission at the postganglionic parasympathetic synapse and what receptor it effects.

Answer 5

Usually Acetylcholine acting on muscarinic receptors.

Question 6

Describe the Sympathetic nervous systems effect on the eye.

Answer 6

Dilates the pupil.

Question 7

Describe the Sympathetic nervous systems effect on the lung.

Answer 7

Dilates the bronchi.

Question 8

Describe the Sympathetic nervous systems effect on the Heart.

Answer 8

Speeds up heart rate.

Question 9

Describe the Sympathetic nervous systems effect on the Gut.

Answer 9

Inhibits peristalsis.

Question 10

Describe the Sympathetic nervous systems effect on the Bladder.

Answer 10

Inhibits Urination.

Question 11

Describe the Parasympathetic nervous systems effect on the eye.

Answer 11

Constricts pupil.

Question 12

Describe the Parasympathetic nervous systems effect on the lung.

Answer 12

Constricts bronchi.

Question 13

Describe the Parasympathetic nervous systems effect on the Heart.

Answer 13

Slows down heart.

Question 14

Describe the Parasympathetic nervous systems effect on the Gut.

Answer 14

Stimulates peristalsis.

Question 15

Describe the Parasympathetic nervous systems effect on the Bladder.

Answer 15

Stimulates urination.

Question 16

Describe the Enteric Nervous System.

Answer 16

-Consists of neuron that regulate the gastrointestinal tract.
-Receives inputs from the sympathetic and parasympathetic nervous system.
–Has mechanoreceptors and chemoreceptors involved in a local reflex pathway that regulate activity of the gut independent from neural input from the higher centres like the CNS.