Rio Salado Bio 201 Exam 3 Questions With Complete
Solutions
A disturbance of posture, muscle tremors at rest, and
uncontrolled muscle contraction are all symptoms of damage to
the basal nuclei.
T or F Correct Answers True
A graded potential that is the result of a neurotransmitter
released into the synapse between two neurons is called a
postsynaptic potential. T or F Correct Answers True
A major relay station for sensory information ascending to
primary sensory areas of the cerebral cortex. Contains many
specialized nuclei. Correct Answers Thalamus
A membrane that transmits sound vibrations to the ossicles and
separates external auditory canal from the middle ear; it houses
the spiral organ of Corti. Correct Answers Tympanic
membrane
A muscle that moves the eyeball Correct Answers Rectus
muscle
A positive feedback cycle is the main force in the generation of
graded potentials at receptor ends. T or F Correct Answers
False. Positive feedback occurs after depolarization begins.
A possible side effect of medications such as aspirin Correct
Answers Tinnitus
,A stimulus traveling toward a synapse appears to open calcium
channels at the presynaptic end, which in turn promotes fusion
of synaptic vesicles to the axonal membrane. T or F Correct
Answers True
A synapse formed between the axonal ending of one neuron and
the cell body of another neuron is called an axosomatic synapse.
T or F Correct Answers True
Acetylcholine is not a biogenic amine. T/F Correct Answers
True
Action potentials can be generated by virtually all cells of the
body because all cells possess cell membranes. T/F Correct
Answers False. Only cells with excitable membranes, such as
neurons and muscle cells, can generate action potentials.
All preganglionic axons of the autonomic nervous system
release which of the following?
Dopamine
The same transmitter as the only one released by the
sympathetic postganglionic axons
Serotonin
The same transmitter as the one released by parasympathetic
postganglionic axons Correct Answers The same transmitter as
the one released by parasympathetic postganglionic axons
All splanchnic nerves are sympathetic.
T/F Correct Answers False
Alpha-adrenergic effects are usually stimulatory and mediatory.
,T/F Correct Answers True
An exceptionally strong stimulus can trigger a response. Correct
Answers Relative refractory period
An individual accidentally transected the spinal cord between T1
and L1. This would result in which of the following?
Paraplegia
Hemiplegia
Spinal shock only
Quadriplegia Correct Answers Paraplegia
Area of greatest visual acuity Correct Answers fovea centralis
Autonomic ganglia contain which of the following?
An outer connective tissue capsule around the cell bodies of
preganglionic motor neurons
The cell bodies of motor neurons
Synapses between postganglionic fibers and their effectors
Both somatic afferent and efferent neurons Correct Answers
The cell bodies of motor neurons
Beta-adrenergic receptors are the only receptors found on the
heart.
T/F Correct Answers False, heart has beta and alpha receptors
Brodmann's numbering refers to which of the following?
Molecular weight of types of neurons
Structurally distinct cortical areas
Counts of neurons per fiber bundle
, Rates of neural division in embryogenesis Correct Answers
Structurally distinct cortical areas
Called a nerve impulse when transmitted Correct Answers
action potential
Can result from impacted cerumen; one of the most common
results of otitis media Correct Answers Conduction deafness
Can result from prolonged exposure to very loud rock music
Correct Answers Sensorineural deafness
Cardiovascular effects of the sympathetic division do not effect
which of the following?
Constriction of most blood vessels
Increase of heart rate and force
Dilation of the vessels serving the skeletal muscles
Dilation of the blood vessels serving the skin and digestive
viscera Correct Answers Dilation of the blood vessels serving
the skin and digestive viscera
Cell bodies of sensory neurons are located in ganglia lying
outside the central nervous system. T or F Correct Answers
True
Central pattern generators; the neural machinery of the spinal
cord Correct Answers Segmental level
Cerebrospinal fluid circulates within the ventricles of the brain
and in the subarachnoid space outside the brain.
T or F Correct Answers True
Solutions
A disturbance of posture, muscle tremors at rest, and
uncontrolled muscle contraction are all symptoms of damage to
the basal nuclei.
T or F Correct Answers True
A graded potential that is the result of a neurotransmitter
released into the synapse between two neurons is called a
postsynaptic potential. T or F Correct Answers True
A major relay station for sensory information ascending to
primary sensory areas of the cerebral cortex. Contains many
specialized nuclei. Correct Answers Thalamus
A membrane that transmits sound vibrations to the ossicles and
separates external auditory canal from the middle ear; it houses
the spiral organ of Corti. Correct Answers Tympanic
membrane
A muscle that moves the eyeball Correct Answers Rectus
muscle
A positive feedback cycle is the main force in the generation of
graded potentials at receptor ends. T or F Correct Answers
False. Positive feedback occurs after depolarization begins.
A possible side effect of medications such as aspirin Correct
Answers Tinnitus
,A stimulus traveling toward a synapse appears to open calcium
channels at the presynaptic end, which in turn promotes fusion
of synaptic vesicles to the axonal membrane. T or F Correct
Answers True
A synapse formed between the axonal ending of one neuron and
the cell body of another neuron is called an axosomatic synapse.
T or F Correct Answers True
Acetylcholine is not a biogenic amine. T/F Correct Answers
True
Action potentials can be generated by virtually all cells of the
body because all cells possess cell membranes. T/F Correct
Answers False. Only cells with excitable membranes, such as
neurons and muscle cells, can generate action potentials.
All preganglionic axons of the autonomic nervous system
release which of the following?
Dopamine
The same transmitter as the only one released by the
sympathetic postganglionic axons
Serotonin
The same transmitter as the one released by parasympathetic
postganglionic axons Correct Answers The same transmitter as
the one released by parasympathetic postganglionic axons
All splanchnic nerves are sympathetic.
T/F Correct Answers False
Alpha-adrenergic effects are usually stimulatory and mediatory.
,T/F Correct Answers True
An exceptionally strong stimulus can trigger a response. Correct
Answers Relative refractory period
An individual accidentally transected the spinal cord between T1
and L1. This would result in which of the following?
Paraplegia
Hemiplegia
Spinal shock only
Quadriplegia Correct Answers Paraplegia
Area of greatest visual acuity Correct Answers fovea centralis
Autonomic ganglia contain which of the following?
An outer connective tissue capsule around the cell bodies of
preganglionic motor neurons
The cell bodies of motor neurons
Synapses between postganglionic fibers and their effectors
Both somatic afferent and efferent neurons Correct Answers
The cell bodies of motor neurons
Beta-adrenergic receptors are the only receptors found on the
heart.
T/F Correct Answers False, heart has beta and alpha receptors
Brodmann's numbering refers to which of the following?
Molecular weight of types of neurons
Structurally distinct cortical areas
Counts of neurons per fiber bundle
, Rates of neural division in embryogenesis Correct Answers
Structurally distinct cortical areas
Called a nerve impulse when transmitted Correct Answers
action potential
Can result from impacted cerumen; one of the most common
results of otitis media Correct Answers Conduction deafness
Can result from prolonged exposure to very loud rock music
Correct Answers Sensorineural deafness
Cardiovascular effects of the sympathetic division do not effect
which of the following?
Constriction of most blood vessels
Increase of heart rate and force
Dilation of the vessels serving the skeletal muscles
Dilation of the blood vessels serving the skin and digestive
viscera Correct Answers Dilation of the blood vessels serving
the skin and digestive viscera
Cell bodies of sensory neurons are located in ganglia lying
outside the central nervous system. T or F Correct Answers
True
Central pattern generators; the neural machinery of the spinal
cord Correct Answers Segmental level
Cerebrospinal fluid circulates within the ventricles of the brain
and in the subarachnoid space outside the brain.
T or F Correct Answers True
