NP2D Flashcards
Concussion does not cause ___________
hemorrhage
___________ is another word for bruising
Contusion
is transient loss of consciousness, that occurs following a rapid and extreme rotation of the calvarium about the spinal axis. stretches WM tracks in the brain stem causing transient disruption of neuronal conduction and loss of consciousness
concussion
when the leptin meninges are really pressed hard against the calvarium
contusion
cutting vessels
vascular laceration
stretching vessels until they tear
avulsion
is the pooled blood that is leaked from blood vessels and subdural
hematoma
How can you get a hematoma?
laceration
avulsion
prolonged clotting times that initially suffered only a mild contusion
Edema Cycle
Cytotoxic Edema -» vascular compression, altered blood flow, endothelial injury -» Vasogenic Edema -» vascular compression, Ischemia -» Cytotoxic Edema
- is an active process mediated by compounds produced by endothelial cells
- they produce endothelial relaxation factor, prostacyclin, and this maintains ________
Patency
spasm of an artery.
arteriospasm
it is easy for fluid to migrate when you are in WM because all you do is push apart these ________________
axonal processes
Arteeriospasm: it is delayed, initially everything looks fine, but it grew worse when you thought that your only problem was paraplegia
Ascending-descending myelomalacia
received significant blow to the head, there was significant deterioration in neurological function with loss of consciousness over the next 24 hours and ultimately death, Wado you expect to find upon post mortem examination of the brain?
- subdural hematoma
- brain swelling
- widespread necrosis of cerebrocortical GM,
particularly the deep lamina adjacent to WM
