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Neuro 1 > Cranial Contents > Flashcards

Cranial Contents Flashcards

1
Q

Spinal cord
Brain stem
Cerebellum

Anatomicall

A

Spinal cord continues with brainstem at foramen magnum…passes to L1/L2 level

Brainstem - pons, midbrain, medulla

Cerebellum - connects to posterior of brainstem

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2
Q

Diencephalon and cerebrum anatomically

A

Dien - thalamus, hypo, and epithalamus

Cerebrum - 2 hemispheres each with cerebral crotex and subcortical areas

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3
Q

Lingtiduinal fissure and sucli/gyri

A

Divides cerebral hemispheres

Sulci - crevice…gyri - bump

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4
Q

Central and lateral sulcus

A

Central divides fronal and parietal

Lateral (sylvian) divides frontal and patietal from temboral

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5
Q

Function of each lobe

A

Frontal - motor and exec
Parietal - somatosensory
Temporal - auditory, learning and memory
Occipital - visual

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6
Q

Insular lobe

A

Buried deep in lateral sulcus

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7
Q

Calvarium

A

Top part of neurocranium where bones are flat

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8
Q

Anterior/middle/posterior cranial fossa boundaries

A

Rostral - fronal bone
Caudal - lesser wing of sphenoid

Between lesser of sphenoid and petrous ridge of temporal

Posterior to petrous ridge of temporal

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9
Q

Contents of anterior/middle and posterior cranial fossa

A

Anerior - frontal lobe and olfactory bules

Middle - temporal, cavernous sinus and CNs associated…internal carotids enter

Posterior - cerebellum and brainstem

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10
Q

Ventricles of the brains

A

Lateral - C chaped
3rd - mid sagittal plane between thalamus
4th - posterior to the brainstem and level of pons and medulla

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11
Q

CSF circulation

A

SF produced by choroid plexus in the ventricles…through foramen of monroe (IV froamen) from lateral into 3rd ventricle…through cerebral aqueduct (between 3rd and 4th entricle) and through superior sagital sinus…CSF drains in dural venous sinuses through arachnoide granulations

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12
Q

Hydrocephalus

A

Water on the brain

Occurs if CSF circulation disrupted

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13
Q

Dura mater

A

Periosteal and meningeal laters…adherent except at folds and venous sinuses

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14
Q

Arachnoid membrane

A

Avascular and extends into pia mater…granulations are extensions that protrude through meningeal later of dura into superior sgitall sinus that hellps reabsorb CSF

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15
Q

Epidural space
Subdural space
Subarahcnoid space

A

Potential space between inner surface of skull and dura mater…middle meningeal artery

Potential space ebtween dura and arachnoide membranes…bridging veins run throgu here

Between arachnoid and piua and full of CSF

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16
Q 
Falx cerebri 
Tentorium cerebelli
Tentorial incisure
Diaphragm sella
Falx cerebelli
A

In long fissure

Covers upper of cerebellum

Passage of midbrain to thalamus

Roof of cavernous sinus

Below the tentorium cerebllum and similar to falx cerebri

17
Q

Dural venous sinuses located in

A

Margins of dural fold s

18
Q

Dural venous sinuses empty into

A

IJV (eventually)

19
Q

Subdural hematoma vs epidural hematoma vs subarachnoide hemorrhage

A

Cerebral veins

Meningeal arteries

Major arteries of the brain

20
Q

Cavernous sinus contents

A

ICA

3,4,V1,V2, and 6

21
Q

Cavernous sinus connections

A

Sigmoud and transverse posteriorly
Opthalmic veins anteriorly
Pterygoid plexus of veins in depp face

22
Q

ICA and vertebral artery paths

A

ICA - through carotid canal

Vertebral - through foramen magnum and form signular basilar artery

23
Q

ICA branches

A

Anterior cerebral
Middle cerebral
POsterior communicating (connects ICA to posterior cerebral artery)

24
Q

ACA

A

Runs in longitudinal fissue to supply medial aspect of cerebral hemispheres and deep regions of brains

25
Q

Middle cerebral artery

A

Runs in lateral missure to supply lateral sides of cerebral cortex and deep regions of brains

26
Q

Watershed regions

A

Most distal regions…most susceptible to ischemia and infarctio n

27
Q

Vertebral artery

A

Branch of subclavian…form the basilar which split into the right and left posterior arteires

28
Q

Posterior cerebral artery

A

Supplies occipital cortex and is terminal branch of basilar artery

29
Q

Circle of willis

A 
ICA
ACA
Acommunicating artery
PCA
Post communicating

Middle is NOT a part and is a terminal brain of internal carotid

30
Q

Berry aneurysms

A

Arise from arterial branch points in circle of willis

Neuro 1 (22 decks)

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