A9 - The nervous System

Question 1

What is the function of the nervous system?

Answer 1

sense the environment and to effect an appropriate response

Question 2

What nervous system supplies to cell body walls, responds to stimuli from the external environment and is voluntary?

Answer 2

somatic nervous system

Question 3

what nervous system sense and responds to internal environment and is involuntary?.

Answer 3

autonomic nervous system

Question 4

the parasympathetic nervous system produces what response?

Answer 4

rest and digest

Question 5

What nervous system produces the fight or flight response?

Answer 5

sympathetic

Question 6

What does the sympathetic response cause?

Answer 6

increased heart rate
arterioles dilate or constrict 
skin makes hair stand up and produces sweat 
bronchioles dilate 
pupils dilate 
liver releases glucose 

parasympathetic will do the opposite

Question 7

Define the term homeostasis

Answer 7

balance between sympathetic and parasympathetic

Question 8

what are extensions of neurons which increases the surface areas and allow nerves to communicate?

Answer 8

dendrites

Question 9

What is a collection of nerve cell bodies?

Answer 9

ganglion

Question 10

What do somatic sensory nerve fibres supply?

Answer 10

sensory innervation to cell walls

Question 11

What supplies motor innervation to skeletal muscle?

Answer 11

somatic motor

Question 12

What supplies special sensory fibres?

Answer 12

special sensory

Question 13

What tells the CNS about pain from an organ?

Answer 13

Visceral afferent

Question 14

What is a mixed nerve?

Answer 14

a nerve fibre that contains 2 or more functional modalities

Question 15

What part of spinal nerves contain mixed (motor and sensory) nerves

Answer 15

• spinal nerve
• posterior ramus
• anterior ramus

Question 16

What part of the spinal nerve contains only sensory?

Answer 16

posterior root

Question 17

What part of the spinal nerve contains only motor?

Answer 17

anterior root

Question 18

What peripheral names nerves contain sympathetic axons?

Answer 18

splanchnic nerves

sympathetic trunk

Question 19

What modalities does the phrenic and intercostal nerves have?

Answer 19

somatic motor and sensory

sympathetic

Question 20

What peripheral named nerves contain somatic motor/sensory and parasympathetic?

Answer 20

vagus nerve

Question 21

What neurotransmitter is at the end of all organs for sympathetic supply?

Answer 21

noradrenaline

Question 22

What neurotransmitter is at all para-vertebral ganglia for sympathetic supply?

Answer 22

acetyl choline

Question 23

What neurotransmitter is at all para-vertebral ganglia and end of all organs for parasympathetic supply?

Answer 23

acetyl choline