Ch 12 #2 Flashcards
auditory area
temporal lobe
primary sensory cortex
parietal lobe
somatic motor cortex
frontal lobe
motor speech area
frontal lobe
premotor area
frontal lobe
visual area
occipital lobe
language/speech
temporal lobe
taste area
insula
intelligence/abstract reasoning
frontal lobe
A major relay station for sensory information ascending to primary sensory areas of the cerebral cortex. Contains many specialized nuclei
thalamus
This brain area associates
experiences necessary for the
production of abstract ideas,
judgment, and conscience.
prefrontal area
The axons from this area form
the major pyramidal tracts.
primary motor cortex
This area is the main visceral
control center of the body
hypothalamus
The stage when vital signs
(blood pressure, heart rate,
and body temperature) reach
their lowest normal levels.
stage 4
Indicated by movement of the
eyes under the lids; dreaming
occurs.
REM
Theta and delta waves begin
to appear.
stage 3
Very easy to awaken; EEG
shows alpha waves; may even
deny being asleep.
stage 1
Typified by sleep spindles.
Diff: 1 Page Ref: 459; Fig. 12.21
37) Begins about 90 minutes after
the onset of sleep.
stage 2
Necessary for emotional
health; may be neural
ʺdebugging.ʺ
REM
amino acid neurotransmitters
glycine and GABA
catecholamines
dopamine and norinephrine
enkephlain and endorphin
peptide transmitters
What function is served by the increased axon diameter at the nodes of Ranvier?
results in increased speed of impulse propagation.
Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. What process does this interfere with and what would be the consequence?
Demyelination interferes with saltatory conduction, which would result in a slowing
down of nerve impulse propagation.
