Topic 5 - BRAIN Flashcards
(55 cards)
The Basal Ganglia
collection of nuclei deep to the grey matter of the cerebral cortex.
The Basal Ganglia generally help in
directing involuntary movements including postural proximal adjustments
Hyperkinesia
abnormal involuntary, irregular movements and/or excessive movements
Examples of Hyperkinesia include
tremors, restless legs, and tics
Hypokinesia
an absence/reduction/difficulty w/ voluntary movements.
The overall effect of the Basal Ganglion is
inhibitory
inhibitory means
hindering or preventing an action
most common disorder of Basal Ganglion and 2nd most common neurological disorder
Parkinson’s Disease
most common neurological disorder
Alzheimer’s disease
Parkinson Disease primary symptoms have to do with
movement problems
hypomimia
reduction in the expressiveness of the face
tremor is a
involuntary, rhythmic, twitching movement
Most Parkinson Disease tremors occur in
the hands
The cerebellum is located
below the occipital lobes of the cerebrum and posterior to the brainstem.
cerebellum functions as
centre for coordination of movements and maintenance of balance.
cerebellum plays a significant role in the maintenance of
equilibrium (balance)
cerebellum works
ipsilaterally
cerebrum works on a _____ basis
contralateral
Ataxia is:
An inability to coordinate the muscles (ex gait)
“drunken sailor’s gait” AKA
Ataxic gait
Intention Tremor
involuntary, rhythmic muscle contractions
dysmetria (think kyles hand)
Inability to perform accurate mvmnts due to over or under projection
brain stem
autonomic nervous system
what initiates auditory and oculomotor reflexes
brain stem
