cranium Flashcards

1
Q

what runs through the foramen ovale

A

maxillary branch of the trigeminal

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2
Q

what runs through the foramen spinosum

A

middle meningeal artery

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3
Q

where does the pituitary gland sit

A

sella turcica

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4
Q

what is the horizontally oriented fold of the dura mater that separates the occipital and temporal lobes of the cerebrum from the cerebellum

A

tentorium cerebelli

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5
Q

what nerves it in the lateral wall of the vaernous sinus

A

trochlear

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6
Q

what forms CSF

A

choroid plexus

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7
Q

what removes excess CSF from the subarachnoid space

A

arachnoid granulations

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8
Q

what vein drains directly into meninges

A

emissary vein

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9
Q

what brain ventricle is located in the cerebrum

A

lateral ventricle

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10
Q

what embryologic structure do brain ventricles come from

A

the lumen of the embryonic neural tube

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11
Q

how do the lateral ventricles communicate with the 3rd ventricle

A

interventricular foramen

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12
Q

what does CSF flow through to go from the 3rd ventricle to the 4th

A

mesencephalic aquaduct

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13
Q

define astrocytes in reference to the BBB

A

act as gatekeepers that permit materials to pass to the neurons after leaving the capillaries

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14
Q

where is the blood brain barrier reduced in the CNS

A

choroid plexus, hypothalamus, and pineal gland

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15
Q

what are the 4 channels of blood to the brain

A

vertebral arteries and internal carotid arteries

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16
Q

what are the primary functions of the frontal lobe

A

higher intellectual functions, personality, verbal communication; voluntary motor control of skeletal muscles

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17
Q

what are the primary functions of the parietal lobe

A

sensory interpretation of textures and shapes; understanding speech and formatting words to express thought and emotions

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18
Q

what are the primary functions of the temporal lobe

A

interpretation of auditory and olfactory sensations; storage of auditory and olfactory experiences

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19
Q

what are the primary function sod the occipital lobe

A

conscious perception of visual stimuli; integration of eye-focusing movement; correlation of visual images with previous visual experiences

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20
Q

what is the role of the insula

A

interpretation of taste; memory

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21
Q

what are the association areas with the frontal lobe

A

primary motor cortex, premotor cortex, motor speech area (broca’s),

22
Q

what are the association areas with the parietal lober

A

primarily somatosensory cortex, somatosensory association area, part of wernicke’s area, part of gnostic area

23
Q

what are the association areas with the temporal lobe

A

primarily auditory and olfactory cortex, auditory and olfactory association areas, part of wernickes and gnostic areas

24
Q

what are the association areas of the occipital lobe

A

primary visual cortex and visual association areas

25
what is the association area with the insula
primary gustatory cortex
26
define projection tracts
link cerebral cortex to caudal brain region
27
define association tracts
connect different regions of cerebral cortex within the same hemisphere
28
define arcuate fibers
connecting neighboring gyri within a single cerebral lobe
29
clusters of gray matter containing neuron cell bodies that lie within masses of white matter is/are the _____
cerebral nuclei
30
define caudate nucleus
C-shaped neurons within stimulate appropriate muscles to coordinate arm and leg movements associated with walking
31
what does the amygdaloid body do
expand region at the tail of the caudate nucleus. participates in the expression and control of moods and emotions
32
what forms the lentiform nucleus
putamen and globus pallidus
33
what does the globes do
inhibits activity of the thalamus
34
what does the putamen do
controls muscular movement at the subconscious level
35
what does the clastrum do
subconscious processing of visual info
36
what nucleus in hypothalamus is involved with oxytocin
paraventricular nucleus
37
what regulates body temperature in hypothalamus
preoptic area
38
what nucleus in hypothalamus is involved in parasympathetics
anterior nucleus
39
what nucleus in hypothalamus is involved with ADH
supraoptic nucleus
40
what nucleus in hypothalamus is involved in circadian rhythm
suprachiasmatic nucleus
41
what nucleus in hypothalamus is involved in sympathetics
dorsomedial nucleus in hypothalamus
42
what is, in the hypothalamus, is involved with olfaction and swallowing
mammillary gland
43
what does the tegmentum do
sends involuntary motor commands to the erector spinae to maintain posture
44
what does the sustantia nigra do
inhibitory signals to skeletal muscles
45
what does the tectum do
relay station for visual and auditory sensations, visual reflex center (superior colliculi), auditory reflex centers (inferior colliculi)
46
what is the role of the lateral corticospinal tract
voluntary limb muscles
47
what is the role of the rubrospinal tract
discrete movement; flexors of limbs
48
what is the role of the anterior corticospinal tract
voluntary axial muscles
49
what is the role of the reticulospinal tract
posture
50
what is the role of the tectospinal tract
visual and auditory integration with movement