Principles - Anatomy of Nervous System 2 - Week 7

Question 1

Which 2 general structures are controlled by the somatic nervous system?

Answer 1

Soma (body wall), external environment

Question 2

Which 2 general structures are controlled by the autonomic nervous system?

Answer 2

Visceral nervous system, internal environment

Question 3

Is a motor neuron afferent or efferent?

Answer 3

Efferent

Question 4

Is a sensory neuron afferent or efferent?

Answer 4

Afferent

Question 5

What is the sensory neuron for the soma called?

Answer 5

Somatic sensory

Question 6

What is the motor neuron for the soma called?

Answer 6

Somatic moto

Question 7

What is the sensory neuron for the organs called?

Answer 7

Visceral afferent

Question 8

What is the motor neuron for the organs called?

Answer 8

Sympathetic/Parasympathetic

Question 9

What is the sensory neuron for the special sense organs (eyes etc.)?

Answer 9

Special sensory

Question 10

What is the motor neuron for the special sense organs called (eyes etc.)?

Answer 10

Sympathetic/Parasympathetic

Question 11

Which CNs are special sensory?

Answer 11

CNI, II & VIII

Question 12

Which CNs contain purely motor neurons?

Answer 12

CN III, IV, VI, XI, XII

Question 13

Which CNs contain both special sensory & motor neurons?

Answer 13

CN V, VII, IX, X

Question 14

Which 2 sensations are detected by mechanoreceptors?

Answer 14

touch, vibration

Question 15

What is detected by thermoreceptors?

Answer 15

Temperature

Question 16

What is detected by nociceptors?

Answer 16

Pain

Question 17

The somatic pathway for touch involves how many neurons?

Answer 17

3

Question 18

Where is the primary somatosensory area?

Answer 18

Parietal lobe

Question 19

Where is the primary somatomotor area?

Answer 19

Frontal lobe

Question 20

Describe the motor neuron to a paralysed muscle.

Answer 20

No motor neuron

Question 21

Describe the motor neuron to a spastic muscle.

Answer 21

Intact motor neuron but commands from brain aren’t working

Question 22

What is the effect of the sympathetic nervous system on heart rate?

Answer 22

Increases heart rate

Question 23

What is the effect of the sympathetic nervous system on GI motility?

Answer 23

Decreases

Question 24

Sympathetic nerves exit the spinal cord at which levels?

Answer 24

T1-L2

Question 25

What is the effect of the parasympathetic nervous system on heart rate?

Answer 25

Decreases heart rate

Question 26

What is the effect of the parasympathetic nervous system on GI motility?

Answer 26

Increases motility

Question 27

All parasympathetic axons leave via…

Answer 27

CN III, VII, IX, X and sacral nerves