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Anatomy and Radiology Test 3 > Cranial Contents > Flashcards

Cranial Contents Flashcards

(84 cards)

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1
Q

Brainstem omposed of

A

Medulla, pons, and midbrain

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2
Q

Posterior aspect of BS

A

Cerebellum

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3
Q

DIencephalon composed of

A

Thalamus, hypothalamus, and epithalamus

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4
Q

Cerebrum is composed of

A

2 hemispheres

Superior

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5
Q

Each cerebral hemisphere composed of

A

Cerebral cortex and subcortical areas

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6
Q

Pituitary gland associated with

A

Hypothalamus

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7
Q

PIneal gland associated with

A

Epithalamus

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8
Q

Cerebrum divised into hemispheres by

A

Longitudinal fissure

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9
Q

Sulci vs. gyri

A

Gyri - ridges

Sulci - crevices

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10
Q

Central sulcus separates

A

Frontal and parietal lobe

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11
Q

Lateral sulcus separates

A

Frontal/parietal from temporal

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12
Q

Corpus callosum

A

White matter…communicates between left and right

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13
Q

Cingulate gyrus

A

Limbic lobe…emotions

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14
Q

Frontal lobe functions

A

Motor, executive functions

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15
Q

Parietal lobe function

A

Somatosensory

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16
Q

Temporal lobe function

A

Auditory

Learning and memory

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17
Q

Occipital lobe function

A

Visual areas

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18
Q

Insular lobe found inside

A

Lateral sulcus

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19
Q

Neurocranium bones

A

Frontal, ethmoid, sphenoid, temporal, parietal, occipital

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20
Q

Calvvarium

A

Top part of neurocranium where bones are flat

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21
Q

Anterior cranial fossa boundary

A

Frontal bone and lesser sphenoid wing

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22
Q

MIddle cranial fossa

A

Lesser sphenoid wing

Petrous ridge of temporal

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23
Q

POsterior cranial fossa location

A

Posterior to petrous ridge of temporal

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24
Q

Anterior cranial fossa contents

A

Frontal lobe

Olfactory bulbs

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25
Middle cranial fossa contents
Temporal lobe Cavernous sinus and CNs Internal carotid arteries
26
Posterior cranial fossa contetns
Cerebellum and brainstem
27
Lateral ventricle
C-shaped in each hemisphere
28
3rd ventricle
Mid-sag between L and R thalamus
29
4th ventricle
Posterior to BS
30
Choiroid plexus
Produces CSF
31
Capillaries of choroid plesxus are
Fenestrated
32
CHoroid epithelial cellscontain
Tight junctions
33
CSF flows from ventricles to the
Subarachnoid space
34
CSF drains into dural sinus through
Arachnoid granulations
35
Disruption of CSF resultsi n
Hydrocephalus
36
Interventricular foramen
connects lateral and 3rd ventricle
37
Cerebral aqueduct
Connects 3rd and 4th ventricle
38
Central canal
Continuation of 4th ventricle...travels through entire spinal cord
39
CSF absorbed into venous system by
Arachnoid granulations
40
Path of CSF in the brain
``` Lateral ventricle IV foramen (Monroe) 3rd ventricle Cerebral aqueduct Fourth ventricle Median aperture/lateral aperture/central canal Arachnoid granulations ```
41
Dura mater layers
Periosteal dura and meningeal dura
42
Where do periosteal and meningeal dura separate
Dural folds and venous sinuses
43
Arachnoid membrane
A vascular membrane
44
Arachnoid granulation compostion
Extenstions of arachnoid that protrude through meningeal layer of dura into superior saggital sinus
45
Which layer of dura dives into longitudinalfissure
Meningeal layer | Creates dural fold
46
Epidural space
Space skull and dura mater
47
Subdural space
Between dura and arachnoid mater
48
MIddle meningeal artery runs in
Epidrual space
49
Bridging veins run in
Subdural space
50
Subarachnoid space
Between arachnoid and pia | Full of CSF
51
Falx cerebri
In longitudinal fissure to separate L and R hemisphere
52
Tentorium cerebelli
Covers upper surface of cerebellum
53
Tentoral incisure
Midbrain passes through here to connect to thalamus
54
Diaphragm sella
Forms roof of cavernous sinus in region of sella turcica
55
Falx cerebelli
Below tentorium cerebelli | Similar to falx cerebri but does not totally separate halves of cerebellum
56
Dural sinuses located in
Margins of dural folds
57
Bridging veins
Arise from cerebral veins in the dural venous sinuses
58
Dural venous sinuses empty into
IJV
59
CSF absorbed into dural venous sinuses through
Arachnoid granulations
60
Subdural hematoma
Tearing of the brdiging cerebral veins as they enter dural sinus...chrnoic and acute types...dura remains fixed to bone
61
Epidural hematoma
Tear of meningeal arteries in epidural space...dura ripped off of bone
62
Subarachnoid hemorrhage
Blood collects in subarachnoid space that contains major arteires of the brain
63
Superior sagittal sinus
Located in falx cerebri (periosteal and meningeal dura) | Separates hemispheres
64
Inferior sagittal sinus
Inferior falx cerebri | Meningeal dura only
65
Straight sinus
Junction of falx cerebri and tenorium cerebelli
66
Confleuns of sinuses
Located on internal occipital protuberence where straight, occipital, and sueprior join together
67
Transverse sinuses
From confleuns toward sigmoud sinus | Between periosteal and meningeal on tentorium cerebelli
68
Sigmoid sinuses
Betweeen dural ayers...run from transverse sinuses to IJV
69
Cavernous sinus
FOrmed by diaphragm sellae and periosteal dura | On floor of hypohyseal fossa
70
How does cavernous sinus drain?
To transverse via superior petrosal | To sigmoid sinus via petrosal sinus
71
Cavernous sinus contains
Crainal nerves 3,4, V1, V2, and 6 | Internal carotid
72
Which CN associated iwht pituitary
Optic chiasm of CN 2
73
Abducens nerve runs with
Internal carotid artery
74
What is cavernouse sinus connected to?
Sigmoid and tvs. sinuses posteriorly Ophthalmic veins anteriorly Pteryhoid plexus of veins in deep face
75
Internal carotid arteries enter cranial cavity through
Carotid canal
76
Vertberla arteries enter cranial canal via
FOramen magnum and join together to form basilar artery
77
Enternal carotid artery branches
Anterior, middle cerebral | POsterior communicating artery
78
Posterior communicating artery connects
Internal carotid system to posterior cerebral artery
79
Anterior cerebral artery runs and supplies
In longitudinal fuissure | Medial aspect of cerebral cortex
80
Middle cerebral runs and supplies
Lateral fissures | Lateral sides of cerebral cortex
81
Left and right vertebral arteries merge into
Basilar artery
82
Basilar artery splits into
Right and left posterior cerebral arteries
83
Posterior cerebral artery is ____ and supplies _____
Terminal branch of basilar artery | Medial and ventral surface of occipital cortex
84
Berry aneurysms arise from
Arterial branch points near circle of willis

Anatomy and Radiology Test 3 (11 decks)

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