Blood Vessels, Meninges, and Ventricles

Question 1

3 Branches off Internal Carotid A.

Answer 1

Posterior communicating a.s
Middle cerebral a.
Anterior cerebral a.

Question 2

2 Branches off Vertebral A.

Answer 2

Anterior spinal a.

Posterior Inferior cerebellar a.

Question 3

4+ Branches off Basilar A.

Answer 3

Anterior inferior cerebellar a.
Pontine a.s
Superior cerebellar a.
Posterior cerebral a.

Question 4

3 Main Supplies to Cerebral Surface

Answer 4

Anterior, middle, and posterior cerebral a.s

Question 5

6 Contents of Cavernous Sinus

Answer 5

Internal carotid a.

CN III, IV, VI, V1, V2

Question 6

4 Notable Areas w/out BBB

Answer 6

Pineal
Area postrema (sense toxins for emesis)
Median Eminence and Neurohypophysis (Post Pit) to release/sense hormones

Question 7

2 Dividers of Dura Mater

Answer 7

Falx Cerebri - vertical

Tentorium Cerebelli - horizontal

Question 8

Arachnoid Granulations

Answer 8

Extensions of arachnoid mater into dural sinus that filter/drain CSF into blood

Question 9

Path Through Ventricles

Answer 9

Lateral ventricles through interventricular foramen of Monro to 3rd Ventricle through Cerebral Aqueduct (of Sylvius) to 4th Ventricle to Central Canal of Spinal Cord

Question 10

2/3 Foramen of 4th Ventricle

Answer 10

Midline foramen of Magendie and 2 Lateral foramina of Luschka

Question 11

3 Hematomas Comparisons (source, descrip, radiologic appearance)

Answer 11

Epidural - middle meningeal a./lucid interval/smooth surface
Subdural - small cerebral v.s/slow onset/ragged edge
Subarachnoid - cerebral a.s (aneurysm)/worst headache of my life/can’t really see as well