NeuroPathology - Intro to NeuroPath Objectives Flashcards
What is Ideomotor Apraxia?
inability to carry out a motor task on verbal command
What is Ideational Apraxia?
failure to perform a sequential act even though each part of the act can be performed individually
What can cause someone to go into a coma?
Injury to brainstem, drug intoxication, metabolic or systemic disorders
What are the 7 levels of Altered Consciousness?
Fully Conscious, Confusion, Lethargy, Obtunded, Minimally Conscious, stupor, Coma
Stupor requires what type of stimulation to arouse someone?
vigorous stimulation
What is Hyperarousal?
loss of hemispheric inhibition of brainstem function
What causes Hyperarousal?
Injuries to cortex: loss of blood flow, toxicity, subarachnoid hemorrhage, hypothermia, epilepticus
What is Locked-In Syndrome?
no mental deficit at all, but unable to move anything except eyes
What causes someone to be in a Persistant Vegetative State (PVS)?
link from cortex to brainstem destroyed
When does brain death occur?
destruction of both upper and lower portions of reticular formation
What does a POSITIVE Babinski sign indicate?
an upper motor lesion
What does a NEGATIVE Babinski sign indicate?
A lower motor lesion
Where can MS lesions originate in the brain?
Anywhere in the white matter of the CNS
