Blood brain barrier and CSF Flashcards
midterm 1
1
Q
permeability of blood brain barrier
A
strict semi-permeable membrane (no large molecules, lipid soluble)
2
Q
cerebral spinal fluid flows through what?
A
ventricles
3
Q
what can enter the sub-arachnoid space?
A
extracellular fluid
4
Q
where is CSF produced?
A
in the ventricular cavities
5
Q
choroid plexus
A
has vascular endothelia with fenestrations and no tight junctions
6
Q
blood vessels
A
has many tight junctions and no fenestrations
7
Q
what is a spinal tap
A
samples CSF, by entering the sub-arachnoid space in the lumbar spinal region
