Brain Structures, Flow, and Nerves - Exam 4

Question 1

dura mater

Answer 1

falx cerebri and falx cerebelli
tentorium cerebelli
sinuses

Question 2

arachnid mater

Answer 2

arachnoid granulations

Question 3

arachnoid granulations

Answer 3

extension of arachnoid mater into superior sagittal sinus to recycle CSF back to bloodstream

Question 4

pia mater

Answer 4

faithful to contours of the brain

Question 5

CSF circulates between…

Answer 5

arachnoid and pia mater

Question 6

brain spaces

Answer 6

epidural, subdural, subarachnoid

Question 7

epidural space

Answer 7

between skull and dura mater

Question 8

epidural hematoma (shape)

Answer 8

biconvex
ex: middle meningeal artery

Question 9

subdural space

Answer 9

between dura mater and arachnoid mater

Question 10

subdural hematoma (shape)

Answer 10

half-moon along hemisphere
ex: bridging veins

Question 11

subarachnoid space

Answer 11

between arachnoid mater and pia mater

Question 12

subarachnoid hematoma (shape)

Answer 12

blood in sulci and fissures
ex: internal carotid

Question 13

sinuses

Answer 13

made from separation of periostea and meningeal layers of dura mater
superior sagittal, inferior sagittal, straight, transverse, confluence, sigmoid

Question 14

superior sagittal sinus

Answer 14

meets with other sinuses at confluence of sinuses
contains arachnoid granulations
lateral lacunae

Question 15

lateral lacunae

Answer 15

reservoirs that feed into sagittal sinus

Question 16

inferior sagittal sinus

Answer 16

drains into straight sinus

Question 17

confluence of sinuses

Answer 17

where straight, transverse, and superior sagittal sinuses meet

Question 18

sigmoid sinus

Answer 18

drains into jugular veins

Question 19

frontal lobe

Answer 19

decision making, personality

Question 20

parietal lobe

Answer 20

somatosensory and attenrion

Question 21

occipital lobe

Answer 21

vision

Question 22

temporal lobe

Answer 22

auditiory

Question 23

insula (insular cortex)

Answer 23

emotions

Question 24

lateral fissure

Answer 24

between temporal and parietal lobes

Question 25

transverse fissure

Answer 25

between cerebrum and cerebellum

Question 26

longitudinal fissure

Answer 26

between hemispheres

Question 27

central sulcus

Answer 27

between frontal and parietal lobes

Question 28

corpus callosum

Answer 28

fiber superhighway between hemispheres

Question 29

choroid plexus

Answer 29

inside ventricles make cerebral spinal fluid

Question 30

thalamus

Answer 30

main relay station for sensory info

Question 31

hypothalamus

Answer 31

circadian rhythm hormone regulation

Question 32

pituitary gland

Answer 32

hormone regulation

Question 33

midbrain

Answer 33

superior colliculi inferior colliculi

Question 34

superior colliculi

Answer 34

visual reflexes

Question 35

inferior colliculi

Answer 35

auditory reflexes

Question 36

pons

Answer 36

bridge between cerebrum and cerebellum

Question 37

cerebellum

Answer 37

coordinates movement

Question 38

medulla oblongata

Answer 38

basic life support operations (respiratory, heart rate, etc)

Question 39

ventricles

Answer 39

contain choroid plexus which generates CSF lateral, third, cerebral aqueduct, fourth

Question 40

third ventricle (location)

Answer 40

between thalami

Question 41

lateral ventricle

Answer 41

one per hemisphere

Question 42

cerebral aqueduct

Answer 42

connects 3rd and 4th ventricles

Question 43

blockage of the cerebral aqueduct causes...

Answer 43

hydrocephalus (water on the brain)

Question 44

fourth ventricle

Answer 44

contains choroid plexus (generates CSF)

Question 45

cranial nerves

Answer 45

I, II, V, X, XI

Question 46

CN I

Answer 46

olfactory smell

Question 47

CN II

Answer 47

optic nerve visual field info

Question 48

CN V

Answer 48

trigeminal facial innervation (motor and sensory)

Question 49

CN X

Answer 49

vagus parasympathetic

Question 50

CN XI

Answer 50

spinal accessory nerve

Question 51

circle of willis

Answer 51

blood comes INTO circle ia internal carotids and basilar artery (via vertebral arteries) circle allows blood flow to continue through brain despite decreased flow in one portion

Question 52

anterior cerebral artery

Answer 52

feeds anterior portions of cerebrum, frontal, and parietal

Question 53

middle cerebral artery

Answer 53

feeds lateral portions of cerebrum, parietal and temporal

Question 54

posterior cerebral artery

Answer 54

feeds posterior portions of cerebrum, occipital, and temporal lobes

Question 55

anterior communicating artery

Answer 55

connects anterior cerebral arteries

Question 56

posterior communicating artery

Answer 56

connects anterior and posterior portions of circle