Nervous System

Question 1

3 parts of the brainstem

Answer 1

midbrain, pons and medulla oblongata

Question 2

what are the 3 fissures in the cerebrum

Answer 2

longitudinal, lateral, transveres

Question 3

what does the longitudinal fissure seperate

Answer 3

left and right

Question 4

what does the lateral fissure seperate

Answer 4

cerebellum and the temporal lobe from the frontal lobe

Question 5

what does the transverse lobe seperate

Answer 5

cerebellum from the cerebrum

Question 6

what are cerebral gyri

Answer 6

coiled structures

Question 7

what are cerebral sulci

Answer 7

grooves

Question 8

what are deeps sulci called

Answer 8

fissures

Question 9

how many lobes is the cortex divided into

Answer 9

5

Question 10

what does the frontal lobe do

Answer 10

movement and motor control, personality, mood, motivation

Question 11

what does the parietal lobe do

Answer 11

recieves sensory info

Question 12

what does the occipital lobe do

Answer 12

visual

Question 13

what does the temportal lobe do

Answer 13

hearing and memory

Question 14

what are the primary areas of the brain

Answer 14

motor cortex,sensory cortex, auditory cortex, visual cortex

Question 15

what are the secondary areas and what do they do

Answer 15

brocas region- language expression
wernickes reagion- language comprehension
frontal- judgement, motor planning and personality
visual association- auditory memories, object recognition
posterior- spatial awareness of surroundings

Question 16

What is the 5th lobe?

Answer 16

the limbic system, basic survival functions like memory, reproduction, nutrition, motivation and emotions

Question 17

What protects the brain and how

Answer 17

Cranium/skull- hard
Meninges- layers containing CSF
CSF- suspends the brian allowing movement
Blood-brain barrier- protects from microorganisms and toxins

Question 18

what is the structures of the meninges?

Answer 18

dura, arachnoid and pia mater. the pia form 2 grooves called the fals cerbri and tentorium cerebelli. subdural space between the dura and arachnoids. space betweeen arachnoid and pia called the subarachnoid space (filled with CSF)

Question 19

Which is the biggest ventricle

Answer 19

lateral

Question 20

where is the 3rd ventricle and what is it attached to

Answer 20

in the middle of the brain, attached to the 4th ventricles which attaches to the mesencephaluc aqueduct

Question 21

what does the 4th ventrical connect to?

Answer 21

central canal

Question 22

what forsm CSF?

Answer 22

choroid plexus

Question 23

what moves the CSF a

Answer 23

epenedymal cells

Question 24

what are some parts of the basal ganglie

Answer 24

striatum: putamen, caudate nuclei and globus pallidus

Question 25

that does the thalamus do?

Answer 25

tells signals where to go

Question 26

what does the corpus callosum do

Answer 26

connects hemispheres and relays information between them

Question 27

what does the midbrain do

Answer 27

reaction to stimuli

Question 28

what does the pons do

Answer 28

sleep and respiration

Question 29

what does the medulla do

Answer 29

coordinate movement

Question 30

what does the cerebrum do

Answer 30

coordinates movements

Question 31

what are the types of important cell

Answer 31

1. astrocytes 2. microglia 3. neurone 4. myelin sheath 5. oligodendrocytes

Question 32

what is the PNS divided into

Answer 32

somatic and autonomic

Question 33

what is the somatic NS and how many motor neurones does it have

Answer 33

NS we control and 1 motor neurone

Question 34

what is the autonimic nervous systema nd how many nerves does it have

Answer 34

we can't control it and it is divided into sympathetic and parasympathetic. there is a ganglion between pre and post ganglionic neurones

Question 35

what is the SNS responsible for

Answer 35

fight or flight

Question 36

whats is the PNS responsible for

Answer 36

rest and digest

Question 37

what's the different between sensory neuroones, motor neurones and interneurones

Answer 37

sensory neurone- recieves info motor neuron- goes to the effector interneurone- sits in-between them

Question 38

what are the 3 different structural classifications of neurones

Answer 38

multipolar, bipolar and pseudo-unipolar

Question 39

what are multipolar neurones

Answer 39

many branches from the cell body | most common

Question 40

what are bipolar neurones

Answer 40

2 branches from one axon. usuall found in specisl organs like eyes/retina

Question 41

what are pseuo-unipolar neurones

Answer 41

once branch coming out that then branches into 2. can only be sensory cells

Question 42

what are the 2 glial cells in the PNS

Answer 42

satellite cells along the ganglion and swann cells along the axon

Question 43

which nerves are mainly in the sympathetic NS

Answer 43

mainly thoracic and lumbar areas

Question 44

which nerves are mainly in the PSN

Answer 44

cranial

Question 45

what neurotransmitters does SNS release and what is the exception

Answer 45

Ach then noradrenaline. Exception is sweat glands

Question 46

What neurotransmitters does PNS release

Answer 46

Ach

Question 47

what is dual innervation?

Answer 47

systems can be innervated by both sympathetic and parasympathetic but with opposite affects

Question 48

What type or neurone is mainly in the CNS (GABA or Glu)

Answer 48

GABA