Brain (wk 10)

Question 1

parts of the brain

Answer 1

forebrain, midbrain, hindbrain

Question 2

what does the forebrain consist of?

Answer 2

cerebrum, thalamus, hypothalamus

Question 3

what does the hindbrain consist of?

Answer 3

pons, medulla oblongata, cerebellum

Question 4

lobes of the brain

Answer 4

frontal, parietal, occipital, temporal

Question 5

frontal lobe function

Answer 5

planning/ problem solving

Question 6

parietal lobe function

Answer 6

sensory information

Question 7

occipital lobe function

Answer 7

vision, has centres for memory

Question 8

temporal lobe function

Answer 8

hearing

Question 9

what are sulci in the brain?

Answer 9

fissures/grooves

Question 10

what are gyri in the brain?

Answer 10

elevations

Question 11

main sulci

Answer 11

central, lateral, parietal- occipital sulcus

Question 12

central sulcus

Answer 12

divides frontal and parietal lobes

Question 13

lateral sulcus

Answer 13

divides frontal and temporal lobes

Question 14

parietal-occipital sulcus

Answer 14

divides parietal and occipital lobes

Question 15

gray matter (40%)

Answer 15

conducts, processes and sends information to various parts of the body, contains most of the brains neuronal cell bodies- fully develops in a persons 20s

Question 16

white matter (60%)

Answer 16

interprets sensory information, made up of bundles

Question 17

corpus callosum

Answer 17

integrates information to the two hemispheres

Question 18

caudal

Answer 18

tail end

Question 19

rostral

Answer 19

head end

Question 20

dorsal

Answer 20

back/posterior

Question 21

ventral

Answer 21

front/anterior

Question 22

two different fibres in white matter

Answer 22

association (same hemisphere) + commissural (different hemispheres)

Question 23

meninges

Answer 23

3 protective layers of tissue, protect the brain from trauma with CSF
3 layers of tissue - Pia, arachnoid, dura

Question 24

dura mater

Answer 24

outermost layer, underneath the bones of the skull and vertebral column

two layered sheets of connective tissue- periostea and meningeal

Question 25

periosteal layer

Answer 25

lines the inner surface of the bones of the cranium

Question 26

meningeal layer

Answer 26

located deep to the periosteal layer

Question 27

dural venous sinuses

Answer 27

between the two layers- periosteal and meningeal
responsible for the venous drainage of the cranium (collects blood from the brain)

Question 28

arachnoid mater

Answer 28

middle layer - directly underneath the dura mater, avascular- superficial muscles adhere to it.

Question 29

pia mater

Answer 29

innermost layer, tightly adhered to the surface of the brain

highly vascularised- blood vessels through membrane to supply neural tissue under

Question 30

three spaces of mater

Answer 30

epi/extradural, subdural, subarachnoid space

Question 31

epi/extradural space

Answer 31

between the skull and the dura

Question 32

subdural space

Answer 32

between the inner layer of dura mater and arachnoid mater

Question 33

sub arachnoid space

Answer 33

contain blood vessels and CSF

Question 34

CSF

Answer 34

housed, goes through the whole brain supplying nutrients and buoyancy

Question 35

extradural hematoma

Answer 35

pushes the dura mater

Question 36

subdural hematoma

Answer 36

shift of the hemisphere

Question 37

ventricles of the brain

Answer 37

set of communicating cavities within the brain

responsible for the production, transport and removal of CSF

Question 38

function of ventricles

Answer 38

protection- “cushioning”
buoyancy- net weight reduced
chemical stability