Neruo 9 Brain and spinal cord Blood supply Flashcards Preview

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Flashcards in Neruo 9 Brain and spinal cord Blood supply Deck (15):
1

What is a TiA and Stroke?

Stroke - lack of blood supply to the brain resulting in neurological symptoms lasting over 24 hours TIA - less than 24 hours

2

What is some symptoms of a tia?

hemiparesis, aphasia

3

Which artery is blocked in a total anterior circulation stroke (TACS)?

Symptoms?

ICA or proximal MCA

Contralateral hemiparesis/hemianopia

Dysphasia, dyspraxia

4

Which artery is blocked in a PACS? Symptoms?

MCA motor defecit

5

Which artery is blocked in a LACS? Symptoms?

Lacunar stroke basal ganglia artery Pure motor, pure sensory, or sensorimotor

6

Which artery is blocked in a POCS? Symptoms?

Posterior circulation stroke Brainstem, cerebellar or occipital involvement

7

What is lateral medullary syndrome and what is its symptoms?

Stroke of the posterior inferior cerebellar artery. Causes vertigo with cerebellar signs

8

What causes locked in syndrome?

Upper brainstem infarction

9

in a hypertensive patient, where would an hemorrhagic stroke most likely occur

basal ganglia, pons, cerebellum, sub cortical white matter

10

In a normotensive patient, where would a hemorrhagic stroke most liekly occur

lobar intracranial hemorrhage

11

what supplies the blood supply to the spinal cord?

anterior 2/3rds - anterior spinal artery posterior - paired posterior spinal artery

12

How does an anterior spinal infarct present?

painful. spinal shock syndrome.

13

What is the decorticate response?

isolation of cortex from lower brain. Lower limbs extend and upper limbs flexed. Like a mummy

14

What is a decerebrate response?

Damage to lower parts of brain, loss of descending inhibition. Complete extension of lower and upper limbs and head.

15