Cerebral Falx 1. Lies along which fissure? 2. Attaches anteriorly to what? Posteriorly? 3. Separates which two structures? 4. Inferior edge arches over what structure? 5. Superior & inferior margins form what?
What structure(s) does V1 of the trigemminal n innervate?
middle cranial fossa
What structure does *V2 & 3 of the trigemminal n innervate?
C2, C3, & vagus nerve
What nerves innervate the posterior cranial fossa?
where arteries & veins course over it
In general, where in the dura mater are pain axons most numerous?
benign dura mater tumors that grow slowly, allowing the brain to accomadate their mass
bleeding of middle meningeal a into potential space b/w skull & dura mater symptoms: temporary loss of consciousness, followed by lucid interval, followed by neurological deterioration shape: lenticular
Epidural hematoma: occurs in what space? symptoms? shape?
bleeding into potential space b/w dura mater & arachnoid
takes days to develop due to slow blood accumulation
Why does shearing of cerebral bridging veins occur in elderly & very young?
aneurysm of cerebral a accumulating blood into subarachnoid space Patients present with thunder clap headach shape: star-shaped ring of blood (hint: arachnoids are spiders, and spiders a kind of star shaped...)