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BIO 256 Exam 2 WITH 170 CORRECT
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The neuroglia forming the myelin sheath around neuron fibers in the peripheral nervous
system are - ANSWER-schwann cells
depolarization means - ANSWER-the inside of the cell gets more positive
the resting membrane potential is characterized by - ANSWER-high potassium and
protein inside the cell and high sodium and calcium outside the cell
if you were to administer a drug that blocked the activity of the sodium/potassium
ATPase pump, what effect would you expect that to have on the cell's ability to absorb
glucose (which is absorbed by sodium cotransport?) - ANSWER-decreased glucose
transport into the cell
during the relative refactor period, a neuron may respond to a - ANSWER-larger
stimulus than the original
salatory conduction is made possible by - ANSWER-the myelin sheath
the substance released at axonal endings to propagate a excitatory posthypnotic
impulse is called a(n) - ANSWER-neurotransmitter
the period after an initial stimulus when a neuron is not sensitive to another stimulus is
the - ANSWER-refectory period
the neurotransmitter utilized at the neuromuscular junction is - ANSWER-acetylcholine
a neural circuit with input traveling along several pathways for integrating by several
CNS systems and providing several response is a - ANSWER-parallel processing circuit
which irregular rhythmic brain waves are observed when you are awake and alert -
ANSWER-beta
REM sleep is associated with - ANSWER-temporary skeletal muscle paralysis, except
for the extrinsic eye muscles
the process of linking new facts with old facts already stored in the memory bank is
called - ANSWER-association
, BIO 256 Exam 2 WITH 170 CORRECT
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which part of the nervous system controls survival emotions and behavior - ANSWER-
the limbic system
which is true about functional MRI (fMRI) - ANSWER-it detects oxygen use by
determining the ratio of oxyhemoglobin to deoxyhemoglobin
in contrast to the somatic nervous system, the autonomic nervous system - ANSWER-
has two efferent neurons
the site of origin of the preganglionic fibers of the parasympathetic nervous system is
the - ANSWER-brain stem and the sacral region of the spinal cord
all preganglionic axons of the autonomic nervous system release - ANSWER-...
which provides vasomotor tone - ANSWER-sympathetic nervous system
feeling a gentle caress on your arm would likely involve all of the following except -
ANSWER-pacinian corpuscles
which type of receptors fire at a constant rate when stimulus is present and stop when
stimulus is removed - ANSWER-tonic
which skin receptors detect pain - ANSWER-nociceptors
when a skins area's two-point threshold is large, that skin has - ANSWER-low sensory
acuity
which kind of papilla does not contain taste buds - ANSWER-filiform
sweet tastes are converted to nerve impulses by - ANSWER-a G protein gustaducin
transducing sensation
which stimulates inspiration - ANSWER-pons apneustric center
odor signnals are processed and sent to the olfactory cortex by - ANSWER-mitral cells
you would expect ____ to be stimulated as you take an elevator up. These extend from
the vestibule into the ____. - ANSWER-saccular, cochlea
which is NOT connected by the helicotrema - ANSWER-scala media
which of these ions is actively transported through the plasma membrane to help
establish the resting potential - ANSWER-na+