CSF Flashcards
Which foramen is before the 3rd ventricle?
Monroe
Which foramen is before the 4th ventricle?
Sylvius
Which foramen is sideways after the 4th ventricle?
Luschka
Which foramen is front/back after the 4th ventricle?
Magendie
4 functions of CSF?
- Protection: acts as a cushion
- Buoyancy: pressure off brainstem
- Excrete waste products
- Transport hormones
What is a cistern?
Widening of the arachnoid space caused by a separation of pia and arachnoid
Where is the intrapeduncular cistern?
Between basis pedunculi
Bifurcation of the basilar artery
Where is the quadrigeminal cistern? Contains?
Dorsal to the midbrain
Great cerebral artery
Where is the pontine cistern? Contains?
Around the ventral pons
Basilar artery and origin of anterior inferior cerebellar artery
Where is the cistern magna? Contains?
Between cerebellum and medulla
Vetebral artery and origen of posterior inferior cerebellar artery
Where is the lumbar cistern? Contains? Used for?
L1-L2
cauda equina
Location of lumbar puncture
Red Csf indicates
Hemmorage
Yellow Csf indicates
Increased concentration of proteins
If increased white blood cells in Csf
Indicates infection
If decreased glucose in Csf, sign of
Bacterial infection
Bacterial infection indicated by what in Csf?
Decreased glucose concentration
Hydrocephalus is
Caused by an overflow of Csf in development
Where and how does Csf leave ventricular space back to subarachnoid
In the 4th ventricle through the foremen of magendie and luschka
What else is in subarachnoid space?
Blood vessels
