Quiz 2 Flashcards
Embolus & thrombus CVA
occluded arteries
Ischemia is
deprivation kf blood supply
Aneurysm is
ballooning of a weaken arterial wall
Aneurysm sub-types
hemorrhage/ hematoma
What is hemorrhage?
exteavasculated blood
What is hematoma?
bruising
Necrosis is
cell/tissue death
Atherosclerosis
arterial occlusion due to hardening of arterial walls
Transient ischemic attack (TIA) is
tempory blackage of blood supply
Embolism is
blockage of distal artery
Thrombosis
Localized build up of fatty substances & blood platelets
2 types of nerve cell
- neurons
- glia cells
Neurons’ functions
power the functioning of the mind
Glia cells’ function
assist & protect neurons > recovery from damage
4 types of neuroglial cells
- Atrocytes
- Oligodendrocytes
- Microglia
- Ependymal
Atrocytes are for
support & surround cell bodies
blood-brain barrier
produce neural growth factor
Microglia is for
Clean out after cell death at the site of injury
Ependymal is for
cerebrospinal fluid
Neurotransmitter in both CNS & PNS
acetylcholine
Acetylcoline is responsible for
sleep/ wakefulness (CNS)
Voluntary/ involuntary movement (PNS)
Dopamine is responsible for
movement, cognition, motivation and emotion
Parkinson’s disease has …. dopamine
too little
Schizophrenia has …. dopamine
too much dopamine
Norepinephrine is responsible for
fight or flight response
Serotonin is for
sleep/wake cycles (depression & mental illness)
GABA (aminobutyic acid) is for
main inhibitor of the CNS
Huntington’s disease
Glutamate
main excitor of the CNS
Glutamate functions
casusing action in the CNS
has to be regulated to avoid damage
