Week 9 Flashcards
electroencephalogram (EEG)
record of the electrical activity of the brain
epilepsy
chronic brain disorder due to paroxysmal excessive neuronal discharges
autonomic
self-governing visceral motor division of the peripheral nervous system
neurotransmitter
chemical agent that relays messages from one nerve cell to the next
parasympathetic
division of the autonomic nervous system, has opposite effects to the sympathetic division
somatic
a division of the peripheral nervous system serving the skeletal muscles
sympathetic
division of the autonomic nervous system operating at an unconscious level
synapse
junction between two nerve cells, or a nerve fiber and its target cell, where electrical impulses are transmitted between the cells
visceral
pertaining to the internal organs
cerebellum
the most posterior area of the brain located between the midbrain and the cerebral hemispheres
cerebrospinal fluid (CSF)
fluid formed in the ventricles of the brain, surrounds the brain and spinal cord
cerebrum
cerebral hemispheres
corpus callosum
bridge of nerve fibers connecting the two cerebral hemispheres
frontal lobe
front area of the cerebral hemisphere
gyrus
rounded elevation on the surface of the cerebral hemispheres
hypothalamus
an endocrine gland in the floor and wall of the third ventricle of the brain
occipital lobe
posterior area of the cerebral hemisphere
parietal lobe
area of the brain under the parietal nerve
sulcus
groove on the surface of the cerebral hemispheres that separates gyri
temporal lobe
posterior 2/3s of the cerebral hemispheres
thalamus
mass of gray matter under the ventricle in each cerebral hemisphere
meningitis
inflammation of the meninges
Alzheimer disease
common form of dementia
cognition
process of acquiring knowledge thru thinking, learning, and memory
confusion
mental state in which environrmental stimuli are not processed appropriately
delirium
acute altered state of consciousness with agitation and disorientation
dementia
chronic, progressive, irreversible loss of the mind’s cognitive and intellectual functions
empathy
ability to place yourself into the feelings, emotions, and reactions of another person
sympathy
appreciation and concern for another person’s mental and emotional state
sedative
agent that calms nervous excitement
senile
characteristic of old age
cerebrovascular accident (CVA)
acute clinical event caused by impaired cerebral circulation
narcolepsy
involuntary falling asleep
postictal
transient neurologic deficit after a seizure
tonic-clonic seizure
the body alternates between excessive muscular rigidity (tonic) and jerking muscular contractions (clonic)
Tourette syndrome
disorder of multiple motor and vocal tics