Question 1

For a neuron, the axon is its _______ zone and an axon terminal is its ______ zone.

Accepted Answer

The answer of For a neuron, the axon is its...

Question 2

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions:
a.more permeable to K+ than to Na+
b.more permeable to Na+ than to K+
c.equally permeable to Na+ and K+
-During an EPSP

Accepted Answer

The answer of Indicate whether the membrane is more permeable...

Question 3

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions:
a.more permeable to K+ than to Na+
b.more permeable to Na+ than to K+
c.equally permeable to Na+ and K+
-At resting potential

Accepted Answer

The answer of Indicate whether the membrane is more permeable...

Question 4

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions:
a.more permeable to K+ than to Na+
b.more permeable to Na+ than to K+
c.equally permeable to Na+ and K+
-During the rising phase of an action potential

Accepted Answer

The answer of Indicate whether the membrane is more permeable...

Question 5

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Concentration gradient for Na⁺ at threshold potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 6

____________________ is a second messenger formed when a membrane enzyme called a cyclase becomes activated by a G protein.

Accepted Answer

The answer of ____________________ is a second messenger formed when...

Question 7

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Electrical gradient for K⁺ at the peak of an action potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 8

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Electrical gradient for Na⁺ at threshold potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 9

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Concentration gradient for K⁺ at the peak of an action potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 10

Choose the match for each substance listed.
a.covering on the axon
b.second messenger
c.branching process from a cell body
d.impulse-conducting region
e.junction between neurons
f.neurotransmitter
-Acetylcholine

Accepted Answer

The answer of Choose the match for each substance listed.
a.covering...

Question 11

The process by which incoming signals are conveyed into a target cell, where they are transformed into a certain cellular response is called signal _________.

Accepted Answer

The answer of The process by which incoming signals are...

Question 12

____________________ move through the axon before being released from the synaptic knob and then bind to nonsynaptic receptors; whereas, ____________________ are made in the cytosol of the synaptic knob and after their release bind to subsynaptic receptors.

Accepted Answer

The answer of ____________________ move through the axon before being...

Question 13

Choose the match for each substance listed.
a.covering on the axon
b.second messenger
c.branching process from a cell body
d.impulse-conducting region
e.junction between neurons
f.neurotransmitter
-Axon

Accepted Answer

The answer of Choose the match for each substance listed.
a.covering...

Question 14

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions:
a.more permeable to K+ than to Na+
b.more permeable to Na+ than to K+
c.equally permeable to Na+ and K+
-During the falling phase of an action potential

Accepted Answer

The answer of Indicate whether the membrane is more permeable...

Question 15

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Concentration gradient for Na⁺ at the end of an action potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 16

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions:
a.more permeable to K+ than to Na+
b.more permeable to Na+ than to K+
c.equally permeable to Na+ and K+
-During an IPSP

Accepted Answer

The answer of Indicate whether the membrane is more permeable...

Question 17

Indicate the direction that the force in question tends to move the involved ion under the stated conditions by writing the appropriate letter in the blank, using the following answer code:
a.tends to move the involved ion out of the cell
b.tends to move the involved ion into the cell
-Concentration gradient for K⁺ at the end of an action potential

Accepted Answer

The answer of Indicate the direction that the force in...

Question 18

In a second messenger system, the first messenger is the __________.

Accepted Answer

The answer of In a second messenger system, the first...

Question 19

Axon terminals possess ____________________ voltage-gated channels that when operational induce neurotransmitter release.

Accepted Answer

The answer of Axon terminals possess ____________________ voltage-gated channels that...

Question 20

____________________ are released into the blood by neurosecretory neurons.

Accepted Answer

The answer of ____________________ are released into the blood by...

Quiz 4: Principles of Neural and Hormonal Communication

For a neuron, the axon is its _ zone and an axon terminal is its zone.

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions: a.more permeable to K+ than to Na+ b.more permeable to Na+ than to K+ c.equally permeable to Na+ and K+ -During an EPSP

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions: a.more permeable to K+ than to Na+ b.more permeable to Na+ than to K+ c.equally permeable to Na+ and K+ -At resting potential

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions: a.more permeable to K+ than to Na+ b.more permeable to Na+ than to K+ c.equally permeable to Na+ and K+ -During the rising phase of an action potential

____________________ is a second messenger formed when a membrane enzyme called a cyclase becomes activated by a G protein.

Choose the match for each substance listed. a.covering on the axon b.second messenger c.branching process from a cell body d.impulse-conducting region e.junction between neurons f.neurotransmitter -Acetylcholine

The process by which incoming signals are conveyed into a target cell, where they are transformed into a certain cellular response is called signal _________.

move through the axon before being released from the synaptic knob and then bind to nonsynaptic receptors; whereas, are made in the cytosol of the synaptic knob and after their release bind to subsynaptic receptors.

Choose the match for each substance listed. a.covering on the axon b.second messenger c.branching process from a cell body d.impulse-conducting region e.junction between neurons f.neurotransmitter -Axon

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions: a.more permeable to K+ than to Na+ b.more permeable to Na+ than to K+ c.equally permeable to Na+ and K+ -During the falling phase of an action potential

Indicate whether the membrane is more permeable to K⁺ or to Na⁺ or is equally permeable to these ions under the stated conditions: a.more permeable to K+ than to Na+ b.more permeable to Na+ than to K+ c.equally permeable to Na+ and K+ -During an IPSP

In a second messenger system, the first messenger is the __________.

Axon terminals possess ____________________ voltage-gated channels that when operational induce neurotransmitter release.

____________________ are released into the blood by neurosecretory neurons.