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Neurology > Clinically Relevant Anatomy of Intracranial SOL & Head Trauma > Flashcards

Clinically Relevant Anatomy of Intracranial SOL & Head Trauma Flashcards

1
Q

Which 3 components must be balanced to ensure intracranial pressure stays constant?

A

Blood
Brain
CSF

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2
Q

What are the 5 layers of the scalp?

A 
S - Skin
C - Connective tissue
A - Aponeurosis
L - Loose connective tissue
P - Pericranium
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3
Q

Which layer contains the anastomotic network?

A

Superficial Connective Tissue

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4
Q

What is the thinnest part of the skull?

A

Pterion

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5
Q

Which bones meet to form the H-shaped pterion?

A

Frontal, parietal, temporal and sphenoid

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6
Q

Which artery runs directly underneath he pterion?

A

Middle Meningeal Artery

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7
Q

What is the sensory supply to the dura mater?

A

CN V

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8
Q

What is the purpose of an arachnoid granulation?

A

Resorption of CSF

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9
Q

What is the name for the part of the dura forming a roof over the pituitary fossa?

A

Diaphragm Sellae

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10
Q

What is the name for the sheet of dura mater passing over the cerebellum?

A

Tentorium Cerebelli

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11
Q

What is the name of the sheet of dura that runs between the two cerebral hemispheres?

A

Falx Cerebri

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12
Q

What does the falx cerebri attach to superiorly?

A

Internal aspect of sagittal suture.

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13
Q

What does the falx cerebri attach to anteriorly?

A

Crista Galli of ethmoid bone.

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14
Q

What does the falx cerebri attach to posteriorly?

A

Occipital protuberance of occipital bone

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15
Q

How does blood leave the brain?

A

Meets at confluence of sinuses > sigmoid sinus > internal jugular vein

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16
Q

What are the two main arteries supplying the brain?

A

Vertebral artery & internal carotid artery

17
Q

What do the right and left vertebral arteries converge to form?

A

Basilar artery.

18
Q

What is the name for the arterial anastomosis at the base of the brain?

A

Circle of Willis

19
Q

What are the appropriate area for lumbar puncture?

A

L3/L4

20
Q

Which structure connects the 3rd and 4th ventricles of the brain?

A

Cerebral Aqueduct

21
Q

Which structure in the lateral and third ventricles produces CSF?

A

Choroid Plexus

22
Q

What is between the lateral ventricles and the third ventricle?

A

Foraminae of Munro (right and left)

23
Q

What causes an extra-dural haemorrhage?

A

Ruptured (middle) meningeal artery

24
Q

What causes a subdural haemorrhage?

A

Torn cerebral veins

25
Q

What causes a subarachnoid haemorrhage?

A

Ruptured Circle of Willis or Berry aneurysm

26
Q

Under which circumstances should you NOT perform a lumbar puncture?

A

Raised Intracranial Pressure

Neurology (15 decks)

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