H&N - Brain Flashcards

1
Q

Sinuses of the brain

A
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2
Q

Meninges of the brain

A

Dura

Arachnoid

Pia

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3
Q

Falx cerebri

A

Inner meningeal layer of dura mater

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4
Q

Diaphragm sellae

A

Covers hypophysial fossa

Has an opening to allow infundibulum of pituitary to connect to base of brain

It’s reflection of dura mater

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5
Q

Arterial supply to dura mater

A

Anterior meningeal artery

Middle meningeal artery

Posterior meningeal artery

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6
Q

Anterior meningeal artery branch of?

A

Ethmoid arteries

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7
Q

Middle meningeal artery branch of

A

maxillary artery

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8
Q

Posterior meningeal artery branch of

A

Ascending pharyngeal

Occipital

Vertebral

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9
Q

Where is CSF produced

A

Choroid plexus in lateral, 3rd and 4th ventricles

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10
Q

Where is CSF reabsorbed

A

Through arachnoid villi which project as clumps (arachnoid granulations) in superior sagittal sinus

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11
Q

Branches of internal carotid artery

A

Only press carotid arteries momentarily

Only = Opthalmic
Press = Posterior communicating
Carotid = Choroidal
Arteries = Anterior cerebral
Momentarily = Middle cerebral
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12
Q

Circle of Willis anatomy

A
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13
Q

Branches of vertebral artery

A

Anterior spinal

Posterior spinal

Posterior inferior cerebellar

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14
Q

Branches of basilar artery

A

Anterior inferior cerebellar artery

pontine arteries

Superior cerebellar artery

Posterior cerebellar artery

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15
Q

Dural venous sinuses

A
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16
Q

Structures draining into dural sinuses

A

Diploic veins

Emissary veins (allow infection from outside in)

17
Q

Structures passing through cavernous sinus

A

CN6

internal carotid artery

18
Q

Structures passing through lateral wall of cavernous sinus

A

CN3, 4, V1, V2

19
Q

Parasympathetic ganglia

A

Ciliary

Pterygopalatine

Otic

Submandibular

20
Q

Nerve of ciliary ganglion

A

Oculomotor

21
Q

Function of ciliary ganglion

A

Pupillary constriction

Eye accommodation

22
Q

Pterygopalatine ganglion nerve

A

Greater petrosal nerve: facial nerve

23
Q

Function of pterygopalatine ganglion function

A

Innervation of

Lacrimal gland, mucous glands of nasal cavity, maxillary sinus and palate

24
Q

Otic ganglion nerve

A

lesser petrosal nerve of CN9

25
Q

Otic ganglion function

A

Innervation of parotid gland

26
Q

Submandibular ganglion nerve

A

chorda tympani to lingual (CN7)

27
Q

Function of submandibular ganglion

A

innervation of submandibular and sublingual glands

28
Q

Clinical finding in oculomotor palsy

A

Dilated pupil

Eye go down and out

29
Q

Clinical findings in trochlear palsy

A

Eyes cant look down and in

cant look downstairs

30
Q

Gross anatomy of saggital section of brain

A

thalamus surrounds 3rd ventricle

Mamillary bodies inferior surface of hypothalamus

31
Q

Which part of cortex responsible for sensory/motor

A

Precentral gyrus motor

Post central gyrus sensory

32
Q

Position of Brocca vs Wernicke’s areas

A

Brocca- speach, frontal lobe

Wernickes- comprehension, temporal lobe

33
Q

Hypothalamus anatomy

A

pituitary attached inferiorly by infundibulum (pituitary stalk)

mamillary bodies anterior

floor of 3rd ventricle

34
Q

Which cranial nerve doesnt originate from brainstem

A

CN11

Forms from roots of top 5 cervical spine

Goes up through foramen magnum

Comes down through Internal jugular foramen