Flashcards in W20/Neuro peer tute Deck (26):
What are the 3 layers of the meninges?
What's the difference between the cranial and spinal meninges?
The cranial dura mater has 2 layers, while the spinal dura mater is only the layer continuous with the inner cranial dura mater layer
Describe some characteristics of the arachnoid layer
Spiderweb-like in appearance
What is the fancy name for the outer cranial dural layer?
What is the fancy name for the inner cranial dural layer?
Which layer of the dura mater forms the falces?
The inner (meningeal) layer
What are the 4 falces?
What are three major types of brain herniations?
Subfalcine (aka cingulate)
Transtentorial (aka uncal)
Which herniation is the most common
Which herniation is common in sub-arachnoid bleeds?
Which herniation is most dangerous?
How does CSF get back into the venous system?
Via the arachnoid granules (/villi) that project into the sinuses
Which meningeal space has the CSF?
Which meningeal spaces are potential spaces only?
Eipdural (except in spine - it's an actual space)
What are the ridges of the cerebrum called?
What are the grooves of the cerebrum called?
Which fissure divides the L and R cerebral hemispheres?
Superior sagittal fissure
(aka longitudinal fissure)
Which fissure separates the frontal from the temporal lobe?
(aka Sylvian fissure)
Which fissure separates the frontal and parietal lobes?
What is the post-central gyrus for?
What is the pre-central gyrus for?
What is the huge bundle of axons that joins the R and L hemispheres called?
The corpus callosum
What is the Monro Kelly doctrine?
The cranial cavity is a closed box, so its volume is constant, and composed of brain, CSF, blood
What equation illustrates the Monro Kelly doctrine?
Vcc = Vbrain + Vcsf + Vblood
What is normal ICP?