The autonomic nervous system

Question 1

What is the main role of the autonomic nervous system

Answer 1

the main role is to regulate body homeostasis by innervating smooth muscle, cardiac muscle and glands

Question 2

what does the autonomic nervous system use

Answer 2

2 neurone chain

Question 3

what is the 2 neurone chain

Answer 3

• preganglionic neurone

- post ganglionic neurone

Question 4

what is the pre ganglionic neurone

Answer 4

cell Body of the first neurone to the CNS

Question 5

what is the post ganglionic neurone

Answer 5

synapses with the second neurone in a ganglion

Question 6

describe sympathetic cells

Answer 6

• short pre ganglionic
• long post ganglionic
• ganglion near cell body

Question 7

describe the parasympathetic cell

Answer 7

• long pre ganglionic
• ganglion away from the cell body
• short post ganglionic

Question 8

does a somatic motor cell have a ganglion

Answer 8

no

Question 9

what nerves does a parasympathetic neurone have

Answer 9

4 cranial nerves

3 pelvic splanchnic nerves

Question 10

what do the pelvic splanchnic nerves control

Answer 10

controls the bladder

Question 11

where do the sympathetic nerves come from

Answer 11

T1 TO L2

Question 12

what happens to sympathetic nerves after they leave the spindle cord

Answer 12

• after they leave via the ventral root the preganglioic sympathetic fibres can pass through white rami communicates to enter the adjoining sympathetic trunk

Question 13

what can a preganglionic axon do once it reaches a trunk ganglion

Answer 13

• synapse in the same trunk
  ascend or descend the trunk
  pass through the trunk without synapsing