The nervous system

Question 1

Draw the nervous system diagram

Question 2

What are the 2 main parts that the nervous system is split into

Answer 2

the central and peripheral system

Question 3

What is the CNS split into

Answer 3

the brain and spinal cors

Question 4

What are the devisions of the brain

Answer 4

-Cerebrum
-Brain stem
-Diencephalon
-Cerebellum

Question 5

What does the spinal cord do

Answer 5

Relays info from the brain to the rest of the body. Does this by connecting different parts if our body by pairs of nerves. Also performs reflexes without direct involvement

Question 6

What is the cerebrum

Answer 6

largest part of the brain, divided into 4 lobes

Question 7

What are the 4 lobes in the cerebrum

Answer 7

frontal, parietal, occipital, temporal

Question 8

What does is the frontal lobe responsible for

Answer 8

speech and thought

Question 9

What does is the parietal lobe responsible for

Answer 9

sensory info

Question 10

What does is the occipital lobe responsible for

Answer 10

visual info

Question 11

What does is the temporal lobe responsible for

Answer 11

hearing

Question 12

What connects the 2 hemispheres of the brain

Answer 12

the corpus callosum

Question 13

What is the cerebellum

Answer 13

motor and balance skills, helping to coordinate muscles.

Question 14

What happens if someone has abnormalities in their cerebellum?

Answer 14

it could lead to speech and motor problems and epilepsy

Question 15

What is the diencephalon

Answer 15

split into 2 parts, the thalamus and hypothalamus

Question 16

Where is the frontal lobe located in the brain

Answer 16

at the front of the brain

Question 17

Where is the parietal lobe in the brain

Answer 17

top back of the brain

Question 18

Where is the occipital lobe

Answer 18

at the bottom of the brain

Question 19

Where is the temporal lobe

Answer 19

At the back of the brain

Question 20

What does the thalamus do

Answer 20

acts as a relay station in our brain for nerve impulses by routing the impulse to that part if the brain that it is relevant to

Question 21

What does the hypothalamus do

Answer 21

brains main link to endocrine system. helps regulate bodies temp and feelings of hunger and thirst

Question 22

What is the brain stem

Answer 22

regulates the automatic functions like breathing, heartbeat, digestion, blinking. Motor +sensory neurons travel through brain stem, connected to SC then to rest of body

Question 23

Where is the cerebellum

Question 24

What is the PNS

Answer 24

all the nerves that aren’t part of the CNS are in the PNS. It’s job is to relay impulses to and from the CNS to the rest of the body

Question 25

What are the 2 parts of the PNS

Answer 25

the autonomic and somatic nervous system

Question 26

What does the somatic nervous system contain?

Answer 26

made of 12 pairs of cranial nerves that emerge from the bottom of the brain. 31 pairs of spinal nerves that emerge from the spinal cord. Each pair contains a sensory and motor neuron. also involved in reflexive actions

Question 27

What is the autonomic nervous system

Answer 27

carries out functions we dont think about like heartbeat, breathing and digestion, also involved in the fight or flight response

Question 28

What is the autonomic nervous system split into

Answer 28

sympathetic NS and parasympathetic system

Question 29

What neurotransmitter is involved in the sympathetic nervous system

Answer 29

noradrenaline

Question 30

What happens in the flight or flight response(sympathetic NS)

Answer 30

-pupils dilate -Increased heart rate -Release stored energy -lungs expand -produce more sweat -digestion slows -adrenaline released

Question 31

What neurotransmitter in involved in the parasympathetic system

Answer 31

Acetylcholine

Question 32

What happens in the parasympathetic NS

Answer 32

the opposite of the fight or flight response. EG decreased heart-rate