Meninges and Venuos Sinuses of the Brain

Question 0

Petrosal sinus drainage

Answer 0

Superior= Transverse sinus

Inferior= Internal Jugular Vein

Question 1

Diaphragma sella

Answer 1

Dural reflection that forms over the sella turcica

*Contains opening for pituitary gland

Question 2

Structures passing through Cavernous Sinus

Answer 2

CN III, IV, V1, V2, VI

Internal Carotid Artery

Question 3

Communicating Hydrocephalus

Answer 3

Calcification of the arachnoid villi in elderly patients

=>Reduced reabsorption of CSF

Question 4

Skull fracture near Pterion

Answer 4

Tearing of meningeal artery

=> Epidural Hematoma

Severe, profuse bleeding makes a “lens” shape appear on CT; rapidly fatal

*Causes uncal and tonsillar herniation

Question 5

Torn bridging vein

Answer 5

Subdural hematoma

“Crescent” shape on CT scan

Chronic; can remain undetected

Question 6

Torn cerebral artery/vein

Answer 6

Subarachnoid hematoma

*If arterial, rapidly fatal