Neuro - Applied Anatomy

Question 1

Which 2 ways are there to secure an aneurysm?

Answer 1

endovascular coiling, surgical clipping

Question 2

What are the layers of the scalp?

Answer 2

Skin, dense Connective Tissue, Aponeurosis, Loose areolar/ connective tissue, pericranium

Question 3

What bones make up the pterion and what is the clinical significance of this?

Answer 3

Frontal, parietal, sphenoid, temporal.

Weakest part of skull, just behind the squamous part of the temporal bone is the Middle Meningeal A, often ruptured in epidural/ extradural haemorrhage

Question 4

What is the name of the natural division between the temporal and frontal lobes?

Answer 4

Lateral/ sylvian fissure

Question 5

Between which layers of the meninges are the blood vessels?

Answer 5

Pia and arachnoid

Question 6

what is the main blood vessel that runs in the sylvian fissure?

Answer 6

Middle Cerebral artery

Question 7

What is the yellow stuff on the arteries in the brain? \what is the clinical significance?

Answer 7

Atheroma - increased risk of occlusion, thrombus and embolisation. Increased risk of embolisation during surgery

Question 8

What is the significance of the circle of willis?

Answer 8

Back up blood flow if occlusion in the internal carotids

Question 9

Does the circle of willis have any anatomical variation?

Answer 9

Yes - commonly hypoplasia and duplicate anterior communicating arteries

Question 10

How are cerebral digital subtraction angiogram conducted?

Answer 10

Needle in femoral artery, inject dye, watch it under imaging and combine the pictures electronically to get a better picture of the blood vessels

Question 11

At what points in blood vessels do aneurysms form?

Answer 11

Branching points

Question 12

Are all aneurysms the same?

Answer 12

Vary in shape, size, location and aetiology

Question 13

What type of metal are aneurysm clips made of and why?

Answer 13

Titanium - body compatible