Brain And Cranial Fossa Flashcards by Hailey Haas

Hemispheres 4

Left and right cerebral hemispheres

Left and right cerebellar hemispheres

How well did you know this?

Not at all

Perfectly

Lobes 4

Frontal, parietal, occipital, temporal

How well did you know this?

Not at all

Perfectly

Longitudinal fissure separates what

Left from right cerebral hemispheres

How well did you know this?

Not at all

Perfectly

Lateral sulcus (fissure) separates what

Temporal and frontal lobes

How well did you know this?

Not at all

Perfectly

Transverse fissure separates what

Occipital lobe, temporal lobe, and cerebellum

How well did you know this?

Not at all

Perfectly

Central sulcus separates what

Frontal and parietal lobes

How well did you know this?

Not at all

Perfectly

Which lobe is one of the last to develop, why teens make bad decisions

Frontal lobe

How well did you know this?

Not at all

Perfectly

Primary auditory cortex in

Temporal lobe

How well did you know this?

Not at all

Perfectly

Fissure is a

Sulcus is a

Groove

Ridge

How well did you know this?

Not at all

Perfectly

Where are hypothalamus and thalamus located/where eyes outgrow from

Diencephalon q

How well did you know this?

Not at all

Perfectly

Midbrain associated with which cranial nerve

III

How well did you know this?

Not at all

Perfectly

Pons associated with which cranial nerve

How well did you know this?

Not at all

Perfectly

Medulla associated with which cranial nerves

9, 10, 12

How well did you know this?

Not at all

Perfectly

Pontomedullary junction associated with which nerves

6-9

How well did you know this?

Not at all

Perfectly

Where spinal accessory nerve originates

Spinal cord

How well did you know this?

Not at all

Perfectly

Layers of dura

External periosteal and internal meningeal

How well did you know this?

Not at all

Perfectly

Which layer of membrane is continuous with spinal dura at the foramen magnum

Internal meningeal

How well did you know this?

Not at all

Perfectly

Arachnoid: __ layer, crosses the __ and __ space, contains __

Middle
Sulcus and subarachnoid
CSF

How well did you know this?

Not at all

Perfectly

Pia layer

__ layer, continuous with brain surface

Inner

How well did you know this?

Not at all

Perfectly

Epidural space: between which two things

Skull and periosteal layer of dura

How well did you know this?

Not at all

Perfectly

Subdural space between what

Between Dural border cell layer at the dura arachnoid junction

How well did you know this?

Not at all

Perfectly

Subarachnoid space

Actual space between arachnoid and pia that contains CSF

How well did you know this?

Not at all

Perfectly

Which spaces are potential spaces

Epidural and subdural spaces

How well did you know this?

Not at all

Perfectly

Where epidural hematomas usually are ___

Subdural hematomas usually ___

Bleeds in arachnoid space usually from __

Arterial

Venous

Arterial

How well did you know this?

Not at all

Perfectly

Dural folds contain __ sinuses They are where __ layer of ___ reflects away from __ layer

Venous Meningeal, dura, periosteal

Falx cerebri Lies in which fissure Between what

Longitudinal cerebral fissure Left and right cerebral hemispheres

Tentorium cerebelli between what

Occipital lobes and cerebellum

Falx cerebelli Where it is and what it separates

Inferior to tentorium cerebelli Partially separates cerebellar hemispheres

Superior Saggital sinus In which border of what Dural reflection

In convex superior border of Falx cerebri

Inferior Saggital sinus In which border of which Dural reflection

Lies in inferior/free border of Falx cerebri

Straight sinus What two things form to join it

Inferior Saggital sinus and vein of Galen

Confluence of sinuses | Where which 4 things meet

Superior sinus, inferior sinus, occipital sinus, and straight sinus

All veins in head drain into what

Internal jugular vein

Transverse sinus | Emerges __ from the __ of __ in the__ attached to margin of __ __

Laterally, confluence of sinuses, posterior, cerebellar tentorium

Sigmoid sinus Continuation of __ sinus Follows __ shaped course in the __ cranial fossa, turns __ then continues as what

Transverse S, posterior, anteriorly

Confluence of sinuses goes __ and __ through __ sinus then to __ sinus

L, R, transverse, sigmoid

Sigmoid sinus leaves skull as what

Cavernous sinus __ structure located within body of __ bone Plexus of veins that drains __ and __ __ __ Contains which artery and 5 cranial nerves

Bilateral, sphenoid Eye and lateral cerebral hemispheres Internal carotid artery, CN III, IV, V1, V2, and VI

Cavernous sinus is inferior to __ and __

Midbrain and diencephalon

Maxillary artery comes from __ __ __ __ is where middle meningeal arteries exit

External carotid Foramen spinosum

``` Middle meningeal artery Supplies __ and __ Branch of __ artery Enters __ __ fossa through the __ __ Clinically significant in __ hematoma ```

Dura and calvaria Maxillary Middle cranial, foramen spinosum Epidural

Blood supply of the brain comes from __ __ and __ arteries

Internal carotid and vertebral

Circle of Willis is an anastomoses between __ and __ arteries

ICA and vertebral

___ __ go through foramen transversarium

Vertebral arteries

Middle cerebral artery supplies what Anterior and middle cerebral arteries come off of __ artery Cerebellum branches and posterior cerebral artery come off of __ artery

Lateral side of brain Internal carotid Vertebral

Vertebral arteries form __ artery

Basilar

Anterior cerebral artery supplies what

Medial and superior surfaces of frontal and parietal lobes

Middle cerebral artery supplies what

Lateral surface of all 4 cerebral lobes

Posterior cerebral artery supplies what

Posterior surfaces, medial parts of temporal and occipital lobes

Cerebellum supplied by what

Pica, aica, superior cerebellar artery

CN I, II, III, IV, V, VI, VII, VIII, VX, X, XI, XII

Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossy pharyngeal, vagus, accessory, hypoglossal

Where CSF is made and where it is drained

Made in choroid plexus Drained in arachnoid granulation a

Neuro cranium houses what

Brain, meninges, cranial nerves, and vasculature of brain

What we take off to remove brain Space that holds skull

Calvaria Cranial fossa

What these hold Anterior fossa Middle fossa Posterior fossa

Frontal lobe Temporal lobe Cerebellum, brain stem, and occipital lobe

``` Anterior cranial fossa __ bone- inferior __ bone - medial ___ bone - posterior Cranial nerve __ exits through __ plate ```

Frontal Ethmoid Sphenoid lesser wing I, cribiform

Middle cranial fossa __ bone (__ __ and body) ___ bone (__ and __) __ bone

Sphenoid, greater wing Temporal, petrous and squamous Parietal

Middle cranial fossa | Cranial nerve __ exits here through __ __, __ through __ __, and __ through __ __.

II, optic canal, III, supra orbital fissure, IV, supra orbital fissure

Middle cranial fossa | ___ nerve exits through 3 parts

Trigeminal V1- supraorbital fissure V2- foramen rotundum V3- foramen ovale

Posterior cranial fossa Bones: __, __, __ 3 parts of brain

Occipital (occipital lobe) Temporal bone Parietal bones Occipital lobe, cerebellum, brain stem

Nerves that exit through posterior cranial fossa

7-12

Facial nerve goes to __ __ and emerges from __ __ Vestibulocochlear nerve goes to __ __ __ Glossopharyngeal nerve goes to __ __

Internal auditory meatus, stylomastoid foramen Internal auditory meatus Jugular foramen

Vagus nerve goes through which fossa Spinal accessory Hypoglossal

Jugular foramen Jugular foramen Hypoglossal canal

Anterior cranial fossa Cribiform plate -

CN 1

Middle cranial fossa Optic canal- Superior orbital fissure-

CN 2 CN III, IV, V1, VI

``` Middle cranial fossa Foramen rotundum- Foramen ovale- Foramen spinosum- Carotid canal- ```

CN V2 CN V3 Middle meningeal artery Internal carotid artery

Posterior cranial fossa Internal auditory meatus- Jugular foramen-

VII and VIII IX, X, XI

Posterior cranial fossa Hypoglossal Canal Foramen magnum

XII Spinal cord, XII, vertebral arteries