Brain Pathology - Tom Butts

Question 1

What are some common sites of occlusion within the cerebrovascular system?

Answer 1

Proximal subclavian artery
First segment of vertebral artery (before enters transverse foramina)
Fourth segment of vertebral artery (intracranial)
Basilar artery
Carotid bifurcation
Siphon portion of internal carotid artery
ACA origin
MCA origin

Question 2

Describe the location of the different cerebellar arteries

Answer 2

Superior - just before the vertebral artery splits into the two posterior cerebral arteries
AICA - just after unification of vertebral to form the basillar
PICA - from vertebral arteries whilst separate.

Question 3

The vertebrobasilar system is associated with what functional part of the brain

Answer 3

Brainstem and cranial nerve funcation
Also contributes to PCA - occipital lobe.

Question 4

What regions of the brain are supplied by what cerebral artery?

Answer 4

Question 5

What brain regions are shown in this image?

Answer 5

Brocas anteriorly
Wernicks posteriorly

Question 6

What are some key functional regions of the brain that are shown in this image?

Answer 6

Premotor area
Supplementary motor area
Primary motor cortex
Somatosensory cortex
Visual cortex
Auditory cortex

Question 7

Give an overview of the function of the different cranial nerves.

Answer 7

CN1 - olfactory
CN2 - optic
3 - lens accomodation, miosis, eye movements
4 - superior oblique
5 - sensation of the face, motor to muscles of mastication
6 - lateral rectus
7 - muscles of facial expression, anterior 2/3 tongue taste, PANS to lacrimal and submandibular/lingual
8 - hearing and balance
9 - taste post 1/3 tongue, sens to tonsil, pharynx and middle ear, motor - stylopharyngesus and parotid gland
10 - PANS chest and abdo
11- sternocladiomastoid and trapexius
12- motor tp the tongue