6.1

Question 0

The peripheral nervous system can be divided up into 2 systems:

Answer 0

Sensory

Motor

Question 1

Nervous system is subdivided into the

Answer 1

Central nervous system

Peripheral nervous system

Question 2

The motor system can be further divided into

Answer 2

Somatic nervous system

Autonomic nervous system

Question 3

The somatic nervous system carries impulses to

Answer 3

Skeletal muscles that are under voluntary control

Question 4

The autonomic nervous system carries nerve impulses to

Answer 4

Glands and muscles that are not under voluntary control

Question 5

The autonomic nervous system is concerned with controlling involuntary activities in the body, such as

Answer 5

The beating of the heart
The secretion of sweat
Controlling the muscles in the gut

Question 6

Sympathetic and parasympathetic nerves speed up or slow down the heart rate in response to

Answer 6

Different levels of exercise

Question 7

The autonomic nervous system is subdivided into the

Answer 7

Sympathetic and parasympathetic systems

Question 8

Both sympathetic and parasympathetic systems consist of

Answer 8

Motor neurones

Question 9

And both sympathetic and parasympathetic send

Answer 9

Impulses to effectors that are not under voluntary control

Question 10

The sympathetic and parasympathetic consist of 2

Answer 10

Neurones that connect the brain or spinal cord to effectors

Question 11

The first neurone synapses with the second neurone at a

Answer 11

ganglion (a collection of nerve cell bodies)

Question 12

How many differences are there between the sympathetic and parasympathetic nervous system?

Answer 12

2

Question 13

First difference- in the sympathetic nervous system the ganglion is very close to the spinal cord, so that the pre-ganglionic neurone is short and post-ganglionic is long. In the parasympathetic nervous system:

Answer 13

The pre-ganglionic is long and the post-ganglionic is shot - the ganglion is very close to or inside the effector

Question 14

Second difference: the sympathetic nervous system produces the neurotransmitter noradrenalin at the synapse with the effector whereas the parasympathetic nervous system produces the neurotransmitter

Answer 14

Acetylcholine at this synapse

Question 15

The difference is neurotransmitter produced -
sympathetic neurones are said to be:
Parasympathetic neurones are said to be:

Answer 15

Adrenergic

Cholinergic

Question 16

In general the sympathetic and parasympathetic nervous systems act

Answer 16

Antagonistically on the effector is they innervate

Question 17

Antagonistic means that they have

Answer 17

Opposite effects

Question 18

Some effectors only have a sympathetic or parasympathetic supply,

Answer 18

Not both

Question 19

The parasympathetic system is active under

Answer 19

Normal conditions

Question 20

The sympathetic nervous system is responsible for reacting to

Answer 20

Stress
Emergencies
Danger

Question 21

Effects of parasympathetic nervous system:

Answer 21

Slows HR
Dilates arteries
Constricts bronchioles
Contracts circular muscles in iris of eye, making pupil constrict
Stimulates tear production
Stimulates secretion of saliva 
Speeds up gut movement
Relaxes bladder and anal sphincters
Causes contraction of bladder

Question 22

effects of sympathetic nervous system:

Answer 22

Speeds up HR
Constructs arterioles
Dilates bronchioles
Contracts radial muscle in iris of eye, making pupil dilate
Slows down gut movement
Contracts bladder and anal sphincters
Causes relaxation of bladder
Contracts erector pili muscles, causing hairs in the skin to 'stand on end'
Increases sweat production