Autonomic System Intro

Question 1

What are the structural groups of the nervous system? (3)

Answer 1

1) somatic nervous system
2) autonomic nervous system
3) enteric nervous system

Question 2

What does the somatic nervous system collect? (4)

Answer 2

collects:

1) tactile
2) pain
3) thermal sensations
4) proprioception… from external environment

Question 3

What does the somatic nervous system send?

Answer 3

sends motor impulses to skeletal muscles

Question 4

What is the motor part of the somatic nervous system comprised of and what does it connect?

Answer 4

a single neuron that connects:

1) the CNS’s motor nuclei of cranial nerves
2) anterior horns of spinal cord
- > to the skeletal muscles

Question 5

What does the autonomic nervous system collect?

Answer 5

1) pressure and stretch from internal milieu

Question 6

What does the autonomic nervous system send?

Answer 6

motor impulses to glands, smooth and cardiac muscles

Question 7

What is the motor part of the autonomic nervous system comprised of and what does it connect?

Answer 7

two neurons that connect:

1) the CNS’s parasympathetic nuclei of cranial nerves III, VII, IX & X
2) the lateral horns of the spinal cord
- > to the organs

Question 8

Where do the motor neurons of the autonomic nervous system synapse?

Answer 8

autonomic ganglia

Question 9

What are the divisions of the motor component of the autonomic nervous system?

Answer 9

1) sympathetic nervous system

2) parasympathetic nervous system

Question 10

What is the function of the parasympathetic nervous system? (5)

Answer 10

stores energy:

1) reduces heartbeat
2) increases peristaltic movements of the GI tract
3) increases endocrine gland secretions
4) dilates sphincters
5) cause sleepiness