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
Otic ganglion function
Innervation of parotid gland
26
Submandibular ganglion nerve
chorda tympani to lingual (CN7)
27
Function of submandibular ganglion
innervation of submandibular and sublingual glands
28
Clinical finding in oculomotor palsy
Dilated pupil Eye go down and out
29
Clinical findings in trochlear palsy
Eyes cant look down and in cant look downstairs
30
Gross anatomy of saggital section of brain
thalamus surrounds 3rd ventricle Mamillary bodies inferior surface of hypothalamus
31
Which part of cortex responsible for sensory/motor
Precentral gyrus motor Post central gyrus sensory
32
Position of Brocca vs Wernicke's areas
Brocca- speach, frontal lobe Wernickes- comprehension, temporal lobe
33
Hypothalamus anatomy
pituitary attached inferiorly by infundibulum (pituitary stalk) mamillary bodies anterior floor of 3rd ventricle
34
Which cranial nerve doesnt originate from brainstem
CN11 Forms from roots of top 5 cervical spine Goes up through foramen magnum Comes down through Internal jugular foramen