PSIO 305 Block 1 Quizzes And Clicker
Questions With Complete Solutions
Trophic interactions between cells and tissues can promote all of the following
EXCEPT:
-increased heart rate
-increased cell proliferation
-cell survival
-increased cellular differentiation - ANSWER Increased heart rate
Proprioception is the awareness of the location of your body parts, provided by
input from peripheral sensory receptors. True or false? - ANSWER True
In sensory perception, is action potential frequency inversely proportional to
stimulus intensity? - ANSWER No AP frequency is PROPORTIONAL to stimulus
intensity
Synapses are involved with converting electrical and chemical signals. True or
False? - ANSWER True
All of the following structure: function pairs is correct for the neuron EXCEPT?
-Post-synaptic ligand-gated channels: ion flux and post-synaptic local voltage
changes
,-Synapse: typically enables an electrical signal to be transmitted directly to a
subsequent neuron
-Axon: conducts action potentials to other cells
Dendrite and soma: receptive area for incoming signals - ANSWER Synapse
because it does NOT allows electrical signal to be transmitted directly to
subsequent neuron.
Synapse in responsible for converting the electrical signal to a chemical signal
Spatial summation refers to the fact that simultaneous stimuli arriving at
different locations on the post-synaptic cell will increase ion flux, possibly
bringing the post-synaptic cell closer to the threshold needed to generate an
action potential. True or False? - ANSWER True
Which of the following might be considered examples of trophic interactions
between cells and/or tissues?
-Reduced frequency of neuronal action potentials results in reduction of muscle
mass.
-Consumption of high carbohydrate meal results in increased secretion of
insulin.
-Exposure to novel environments or mental stimulation leads to more dense
receptive areas in the active neurons
-Contractile force of muscle increases bone density in the areas of tendon
attachments of muscle.
-High intensity exercise results in increased heart rate. - ANSWER -Reduced
frequency of neuronal action potentials results in reduction of muscle mass.
-Exposure to novel environments or mental stimulation leads to more dense
receptive areas in the active neurons
-Contractile force of muscle increases bone density in the areas of tendon
attachments of muscle.
Trophic factors promote cellular growth, differentiation, or survival
A motor unit is the smallest voluntary functional unit of force production and
consists of one motor neuron and all the muscle fibers that it innervates. True or
False? - ANSWER True
, Which of the following structure:function pairs is correct for the central nervous
system components involved in developing the movement plan ?
-Cerebellum: balance and coordination
-Association area of frontal lobe: involved in the initial formulation of movement
plan.
-Basal ganglia: enables proprioception
-Primary Motor cortex: responsible for sending the movement plan to the
relevant muscles - ANSWER -Cerebellum: balance and coordination
-Association area of frontal lobe: involved in the initial formulation of movement
plan.
-Primary Motor cortex: responsible for sending the movement plan to the
relevant muscles
The basal ganglia are responsible for initiating movement NOT proprioception
Which of the following are roles of glial cells?
-Transmit action potentials to other glial cells
-Insulative
-Supportive
-Help to maintain appropriate extracellular ion concentrations in the CNS
-Regulate growth - ANSWER -Insulative
-Supportive
-Help to maintain appropriate extracellular ion concentrations in the CNS
-Regulate growth
Glial cells do NOT transmit action potentials
Neurotransmitters released into a synapse will bind to post synaptic receptors
that could mediate their effects through:
-catalytic receptors
-nuclear receptors
-GPCRs
Questions With Complete Solutions
Trophic interactions between cells and tissues can promote all of the following
EXCEPT:
-increased heart rate
-increased cell proliferation
-cell survival
-increased cellular differentiation - ANSWER Increased heart rate
Proprioception is the awareness of the location of your body parts, provided by
input from peripheral sensory receptors. True or false? - ANSWER True
In sensory perception, is action potential frequency inversely proportional to
stimulus intensity? - ANSWER No AP frequency is PROPORTIONAL to stimulus
intensity
Synapses are involved with converting electrical and chemical signals. True or
False? - ANSWER True
All of the following structure: function pairs is correct for the neuron EXCEPT?
-Post-synaptic ligand-gated channels: ion flux and post-synaptic local voltage
changes
,-Synapse: typically enables an electrical signal to be transmitted directly to a
subsequent neuron
-Axon: conducts action potentials to other cells
Dendrite and soma: receptive area for incoming signals - ANSWER Synapse
because it does NOT allows electrical signal to be transmitted directly to
subsequent neuron.
Synapse in responsible for converting the electrical signal to a chemical signal
Spatial summation refers to the fact that simultaneous stimuli arriving at
different locations on the post-synaptic cell will increase ion flux, possibly
bringing the post-synaptic cell closer to the threshold needed to generate an
action potential. True or False? - ANSWER True
Which of the following might be considered examples of trophic interactions
between cells and/or tissues?
-Reduced frequency of neuronal action potentials results in reduction of muscle
mass.
-Consumption of high carbohydrate meal results in increased secretion of
insulin.
-Exposure to novel environments or mental stimulation leads to more dense
receptive areas in the active neurons
-Contractile force of muscle increases bone density in the areas of tendon
attachments of muscle.
-High intensity exercise results in increased heart rate. - ANSWER -Reduced
frequency of neuronal action potentials results in reduction of muscle mass.
-Exposure to novel environments or mental stimulation leads to more dense
receptive areas in the active neurons
-Contractile force of muscle increases bone density in the areas of tendon
attachments of muscle.
Trophic factors promote cellular growth, differentiation, or survival
A motor unit is the smallest voluntary functional unit of force production and
consists of one motor neuron and all the muscle fibers that it innervates. True or
False? - ANSWER True
, Which of the following structure:function pairs is correct for the central nervous
system components involved in developing the movement plan ?
-Cerebellum: balance and coordination
-Association area of frontal lobe: involved in the initial formulation of movement
plan.
-Basal ganglia: enables proprioception
-Primary Motor cortex: responsible for sending the movement plan to the
relevant muscles - ANSWER -Cerebellum: balance and coordination
-Association area of frontal lobe: involved in the initial formulation of movement
plan.
-Primary Motor cortex: responsible for sending the movement plan to the
relevant muscles
The basal ganglia are responsible for initiating movement NOT proprioception
Which of the following are roles of glial cells?
-Transmit action potentials to other glial cells
-Insulative
-Supportive
-Help to maintain appropriate extracellular ion concentrations in the CNS
-Regulate growth - ANSWER -Insulative
-Supportive
-Help to maintain appropriate extracellular ion concentrations in the CNS
-Regulate growth
Glial cells do NOT transmit action potentials
Neurotransmitters released into a synapse will bind to post synaptic receptors
that could mediate their effects through:
-catalytic receptors
-nuclear receptors
-GPCRs
