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Nervous System II: Synaptic Transmission

Interactive Physiology® Quiz: Nervous System II: Synaptic Transmission

This activity contains 47 questions.

Question 1.

Synaptic transmission occurs when the neurotransmitter from the presynaptic cell diffuses across the synaptic cleft and binds to its receptors located on the postsynaptic membrane.


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Question 2.
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Synaptic transmission ends when the dissociates from the receptor and is removed from the synaptic cleft.

 

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Question 3.

The presynaptic neuron releases the neurotransmitter into the synaptic cleft.


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Question 4.
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A(n) in the axon terminal region causes voltage-gated calcium channels to open.

 

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Question 5.
An increase in which ion at the axon terminal region of the presynaptic neuron results in a neurotransmitter release?


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Question 6.
When an action potential reaches the end terminal region of a presynaptic neuron


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Question 7.
Which event occurs immediately after extracellular calcium enters the axon terminal region?


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Question 8.

A neurotransmitter is the chemical signal that opens voltage-gated ion channels.


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Question 9.
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, or ion movement through chemically gated channels, may depolarize or hyperpolarize the neuron.

 

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Question 10.
When the neurotransmitter binds to a receptor located on the postsynaptic membrane


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Question 11.
Ion movement across the postsynaptic membrane as a result of neurotransmitter binding


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Question 12.
Chemically gated ion channels


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Question 13.

Synaptic transmission ends when the neurotransmitter leaves it receptor and is removed from the synaptic cleft.


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Question 14.

All neurotransmitters are enzymatically degraded.


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Question 15.
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The neurotransmitter glutamate is pumped back into the terminal.

 

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Question 16.
Which statement is CORRECT?


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Question 17.
Which event happens immediately after a neurotransmitter binds to its postsynaptic membrane receptor?


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Question 18.
A neurotransmitter


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Question 19.

The action of the postsynaptic cell depends on which neurotransmitter is involved, and the specific receptor found on that cell.


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Question 20.

All acetylcholine receptors produce excitatory postsynaptic potentials.


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Question 21.

Acetylcholine binds to more than one type of receptor.


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Question 22.
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is an example of a neurotransmitter that activates different ion channels resulting in more than one effect on the postsynaptic cell.

 

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Question 23.
Which statement is INCORRECT concerning acetylcholine?


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Question 24.
Which statement is CORRECT?


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Question 25.
Match each statement to its correct answer. An answer may be used more than once. However, each statement has only one correct answer.




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A matching question presents 3 answer choices and 3 items. The answer choices are lettered A through C. The items are numbered 25.1 through 25.3. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A Activation causes smooth muscle to contract.
B Activation produces slow, excitatory postsynaptic potentials (EPSP).
C Activation causes skeletal muscle to contract.
 
 
 
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Question 26.

There is more than one family of receptors for norepinephrine and epinephrine.


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Question 27.
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receptors bind norepinephrine and epinephrine.

 

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Question 28.
Alpha and beta adrenergic receptors are NOT found


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Question 29.
Norepinephrine (NE) and epinephrine


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Question 30.
Adrenergic receptors


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Question 31.
Epinephrine acts on Beta-2 receptors in order to produce slow


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Question 32.
Match each statement to its correct answer. An answer may be used more than once.




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A Primarily an epinephrine receptor.
B Stimulates contraction of smooth muscle cells located in the walls of blood vessels of the skin, mucosae, and abdominal viscera.
C When activated, heart rate increases and strength of contraction occurs.
 
 
 
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Question 33.

Cholinergic neurons are only found in the somatic nervous system.


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Question 34.
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receptors are located in postsynaptic membranes of both preganglionic and ganglionic neurons.

 

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Question 35.
Which neuron directly communicates to its effector organ?


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Question 36.
During a nervous system mapping experiment, a neuroscientist found that the second neuron of a two-neuron chain released ACh. Which statement about her finding is CORRECT?


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Question 37.
Which neuron releases norepinephrine?


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Question 38.

The major inhibitory neurotransmitter in the CNS is glutamate.


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Question 39.
Glutamate


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Question 40.
Inhibitory neurotransmitters in the CNS


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Question 41.
Where on the postsynaptic neuron would an excitatory axon terminal synapse be located?


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Question 42.

Rapid signaling of direct-acting neurons is important for communication, sensory-motor coordination, and other higher order functions.


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Question 43.

NE, ACh, and serotonin all produce state changes in the CNS.


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Question 44.
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Coordinating sensory input with motor outputs requires synaptic signaling.

 

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Question 45.
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neurotransmitters can modulate neurons, ultimately changing their functions and producing a new and different output.

 

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Question 46.
All of the following activities require direct, rapid synaptic activity EXCEPT:


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Question 47.
All of the following activities require indirect synaptic activity of the autonomic nervous system EXCEPT:


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