nervous system

Question 1

What are the two types of nerves

Answer 1

Sensory and Motor

Question 2

What does a sensory nerve do

Answer 2

Takes sensory information from the body to the brain i.e touch, vibration, temperature, vision

Question 3

What does a motor nerve do

Answer 3

Carries information from the brain to the body for movement

Question 4

what does somatic mean

Answer 4

Body

Question 5

What does a sensory somatic nerve do

Answer 5

Carries information about sensations you can notice and feel on your body

Question 6

What does autonomic mean

Answer 6

(Automatic) Things you can’t control or dont notice

Question 7

What does a sensory autonomic nerve do

Answer 7

Carries information about blood pressure etc and things we don’t notice

Question 8

What is another word for autonomic sensory nerves

Answer 8

Visceral

Question 9

Is somatic sensory voluntary or involuntary

Answer 9

voluntary

Question 10

Is autonomic nerves voluntary or involuntary

Answer 10

Involuntary

Question 11

Motor nerves are divided into what two nerves

Answer 11

Somatic and autonomic

Question 12

Autonomic nerves are divided into what two nerves

Answer 12

Sympathetic and parasympathetic nerves

Question 13

Sympathetic nerves control what response

Answer 13

Fight or flight

Question 14

Parasympathetic nerves control what response

Answer 14

rest and digest

Question 15

Fight or flight responses are

Answer 15

-increases heart rate
-Dilated pupils
-increased blood supply (more energy)
-sweating
-released stress hormones

Question 16

Rest and digest responses are

Answer 16

-Preparing the body for “housekeeping functions”
-Slowing heart rate
-Relaxing muscles
-Contracting pupils

Question 17

Somatic motor nerves connect to what muscle

Answer 17

Skeletal muscles

Question 18

What is a synapse

Answer 18

A connection between the nerve and the muscle

Question 19

each muscle cell is innervated by a ____ neutron but one neuron can control ____ muscle fibres

Answer 19

Single
Many

Question 20

What is a motor unit

Answer 20

A group of muscle fibres controlled by a single neuron

Question 21

The strength of muscle contraction is controlled using motor units via

Answer 21

Frequency
Recruitment

Question 22

How many cranial nerves are there

Answer 22

12 pairs except the vagus nerve which is chest and abdomen

Question 23

What does sensory cranial nerves control

Answer 23

smell, sight and hearing

Question 24

What do Motor cranial nerves control

Answer 24

Eye movements, Neck and shoulder movements, tongue movements

Question 25

What does mixed cranial nerves control

Answer 25

Facial sensation and expression, taste and tongue movements, cheat and abdomen feelings and movement

Question 26

What do spinal nerves do

Answer 26

Carry signals to and from all areas of the body except the head

Question 27

How many spinal nerves are there

Answer 27

31

Question 28

What are the different names and numbers of spinal nerves

Answer 28

8 cervical nerves (neck) 12 thoracic nerves (chest) lumbar nerves (lower back) Sacral nerves (tailbone area)

Question 29

Hearing and balance - Mechanoreceptors for hearing and located where

Answer 29

In the cochlea of the inner ear

Question 30

Taste occurs due to the detection of food and drink by

Answer 30

chemoreceptors in the taste buds

Question 31

Taste buds are found on the

Answer 31

tongue, cheeks and throat

Question 32

How much % of taste is smell

Answer 32

80

Question 33

Smell is also detected by

Answer 33

chemoreceptors

Question 34

What are the main types of cells in the nervous system

Answer 34

Neurons

Question 35

What do neurons do

Answer 35

Transmitting the signals throughout the body

Question 36

What are action potentials

Answer 36

Electrical impulses transmitted down the length of the axon to the axon terminal

Question 37

What are the three phases of action potentials

Answer 37

depolarisation repolorisation hyperpolarisation

Question 38

What is a myelin sheath

Answer 38

The fatty layer surrounding the axon of a nerve

Question 39

What neurons send signals to the brain and spinal cord for interpretation

Answer 39

Sensory neurons

Question 40

What neuron carry signals from the brain and spinal cord to parts of the body that are called effectors

Answer 40

Motor neurons

Question 41

What is the cerebrum

Answer 41

the largest and main part of the brain

Question 42

What is the brainstem

Answer 42

it is below the cerebrum and connects to the spinal cord it is in control of things to survive such as breathing

Question 43

What does the hypothalamus do

Answer 43

Regulation of sleep wake cycles regulation of appetite and thirst regulation of temperature

Question 44

What is the function of myelin sheaths in the axons of neurons

Answer 44

Increases the speed of action potentials

Question 45

Where is CSF found

Answer 45

In the subarachnoid space

Question 46

Chewing is an example of

Answer 46

Mechanical digestion

Question 47

The gall bladder stores

Answer 47

Bile