Intro to Neuroanatomy and Neuroimaging Flashcards
There's probably not too much flash-cardable stuff from this lecture...
What connects the lateral ventricles to the third ventricle?
the interventricular foramen / Foramen of Monroe
What 3 C-shaped structures in the brain were emphasized?
Lateral ventricles, cuadate nucleus, and the hippocampus.
On a CT scan, what colors are bone, brain, and CSF?
Bone is white, brain is shades of grey, CSF is black.
In a T1 MRI, what colors are CSF, grey matter, and white matter?
CSF is black, grey matter is grey, white matter is white (it’s the most intuitive)
In a T2 MRI, what colors are CSF, grey matter, and white matter?
CSF is bright white. Brain is various shades of grey (white matter is darker).
What is the structure formed by a bleed between the epicranial aponeurosis and the skin called?
Caput (that nice lump you get when you hit your head)
What’s a bleed between the skull and external periosteum called?
Cephalhematoma
What’s a bleed between the epicranial aponeurosis and the external periosteum called?
subgaleal hemorrhage
What’s a bleed between the skull and internal periosteum called?
Extradural hematoma.
Describe an epidural hematoma: Venous or arterial? Does it respect suture lines? Appearance on CT?
arterial, respects suture lines. Big, lens-shaped thing.
What is a subdural hematoma? Venous or arterial? Does it respect suture lines?
Venous blood below dura (between the dura and arachnoid mater). Doesn’t stay confined to suture lines. More subtle on CT. *corrected from saying this was in the subarachnoid space, which is way wrong*
What’s lissencephaly? Why would this present subtly in a newborn?
No gyri or sulci - profound defect of cortical development. “It takes a brainstem to be a newborn” - newborns don’t really use their cortex anyway, so it’s hard to see defects.
What’s pachygyria?
gyri are too thick.
What’s polymicrogyria?
too many gyri, and they’re too small.
You see grey matter lining the ventricles. What do you call that?
Double Cortex
