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cross sectional > unit 2 > Flashcards

unit 2 Flashcards

1
Q

what muscles of the eye can be seen on CT?

A

rectus muscles ( superior, inferior, medial, lateral

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2
Q

what vessels are responsible for drainage of the head

A

dural sinuses , drain into internal jugular vein

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3
Q

outermost layer of meninges

A

dura mater

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4
Q

middle layer of meninges

A

arachnoid

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5
Q

innermost layer of meninges (adheres to the brain)

A

pia mater

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6
Q

what provides a pathway for circulation of CSF within the brain

A

ventricles

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7
Q

what structure produces CSF?

A

choroid plexus

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8
Q

largest portion of the brain

A

cerebrum

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9
Q

the 5 lobes of the brain

A

frontal , parietal, temporal, occipital, insula

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10
Q

what is the “little brain”

A

cerebellum

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11
Q

folds of the brain

A

gyri

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12
Q

grooves of the brain

A

sulcus

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13
Q

deepest grooves of brain

A

fissures

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14
Q

the largest & densest bundle of white matter

A

corpus callosum

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15
Q

white brain matter contains

A

myelinated axons

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16
Q

gray brain matter contains

A

unmylinated neurons

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17
Q

name the 3 major segments of the brain stem

A

midbrain, pons , medulla oblongata

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18
Q

what major vessels form the circle of willis

A

-posterior , middle , & superior cerebral arteries
-posterior & anterior communicating
- basilar arteries
- internal carotid

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19
Q

list the facial bones

A

maxilae - 2
zygomatic - 2
lacrimal - 2
nasal - 2
nasal conchae - 2
palatine - 2
vomer - 1
mandible - 1

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20
Q

the layers of bone are :

A

compact bone

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21
Q

suture that separates the frontal & parietal bones

A

coronal suture

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22
Q

suture that separates the parietal bones

A

sagittal suture

23
Q

suture that separates temporal & parietal bones

A

squamous suture

24
Q

suture that separates parietal & occipital bone

A

lambdoidal suture

25
Q

what is the blood brain barrier

A
  • protects the brain , made of small capillaries , prevents certain substances from crossing over
26
Q

function unit of the nervous system

A

neuron

27
Q

bring nervous information into the CNS (thought)

A

sensory or afferent

28
Q

relay nervous messages to organs (away from the brain) (action)

A

motor or efferent

29
Q

what carries messages to the cell body

A

dendrites

30
Q

carry messages away from cell body

A

axon

31
Q

where is CSF found ?

A

cisterns , central canal, spinal cord, ventricles

32
Q

space between arachnoid layer & pia mater

A

subarachnoid

33
Q

space external to the dura mater

A

epidural space

34
Q

space between the dura mater and the arachnoid

A

subdural space

35
Q

fore brain : ( 2 sections )

A

cerebrum & diencephalon

36
Q

white matter that connects the two hemispheres and allows for communication between them

A

corpus callosum

37
Q

what fissure separates the occipital lobe from the cerebellum

A

transverse fissure

38
Q

fissures are made up of :

A

sulci, gyri

39
Q

(sylvia’s fissure) separates the frontal, parietal, & temporal lobes of the cerebrum

A

lateral fissure

40
Q

4 portions of the diencephalon

A

epithalamus , thalamus, metathalamus, & hypothalamus

41
Q

connects the hind brain with the cerebrum with two main parts

A

mid brain

42
Q

once this structure passes through the foramen magnum is becomes the spinal cord

A

medulla oblongata

43
Q

what do they refer to as, our “internal clocks”

A

pineal gland

44
Q

how many cranial nerves arise from the brain stem

A

10 of the 12

45
Q

largest of the ventricles

A

lateral ventricle

46
Q

what cistern is between the medulla and inferior cerebellar hemispheres

A

cisterns magna

47
Q

1st branch off aorta

A

brachiocephalic (innominate) artery

48
Q

the two vertebral arteries merge to form _______ after is passes through the foramen magnum

A

basilar artery

49
Q

what bone houses organs for hearing

A

temporal bone

50
Q

where does a lumbar puncture (spinal tap) take place?

A

between L4-L5

51
Q

describe TIA

A

transient ischemic attack “mini stroke” comes & gos - interruption of cerebral blood flow

52
Q

what condition has a pool of blood between the brain & its outermost covering

A

subdural hematoma

53
Q

bleeding in the space between the brain & surrounding membrane , sudden severe headache & can be fatal

A

subarachnoid hemorrhage

cross sectional (6 decks)

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