Meninges, ventricles, CSF Flashcards
1
Q
what is the shape of an epidural hematoma? does it cross the midline?
A
- lens shaped 2. yes
2
Q
what is the shape of a subdural hematoma? does it cross the midline?
A
- sickle shaped 3. no
3
Q
where is the third ventricle located?
A
midline region of diencephalon
4
Q
what are the boundaries of the fourth ventricle?
A
posterior - cerebellum anterior - pons and rostral medulla
5
Q
the anterior choroidal artery is a direct branch of what artery? posterior choroidal?
A
- anterior choroidal - middle cerebral 2. posterior choroidal - posterior cerebral
6
Q
blood passes through which layers to go from a blood vessel to get to CNS tissue?
A
endothelium of capillary, pia mater, ependymal lining
7
Q
what is the ‘true blood brain barrier’?
A
tight junctions of the endothelial cells of the cerebral capillaries (astrocytes and glial cells control access to neurons)
