Question 1

What symptoms would a nurse focus on in his or her care of a patient with multiple sclerosis?

Accepted Answer

The answer of What symptoms would a nurse focus on...

Question 2

Figure 11.1
Using Figure 11.1, match the following:
-Which neuron would activate to a muscle?

Accepted Answer

A) C 
B) B 
C) A

Question 3

Meningitis can be caused by infection of the central nervous system by bacteria.Which cells would be most responsible for removing the infection?

Accepted Answer

A)  Schwann cells 
B)  oligodendrocytes 
C)  microglia 
D)  satellite cells

Question 4

Because all action potentials are alike,how does the brain separate situations that require immediate attention from ordinary "positional" reports?

Accepted Answer

The answer of Because all action potentials are alike,how does...

Question 5

The depolarization phase of an action potential is punctuated by the closing of inactivation gates in the voltage gated sodium ion channels.All of the following are consequences of this inactivation except one.Choose the statement below that is not a consequence of the closing of inactivating gates.

Accepted Answer

A)  This allows for the efflux (diffusion out) of potassium ions, resulting in the repolarization of the cell. 
B)  This allows for the one way transmission of action potential down the axon. 
C)  This limits the frequency of action potentials down the axon. 
D)  This stops the depolarization of the axon membrane.

Question 6

What is the role of microglial cells and why are they so important in the CNS?

Accepted Answer

The answer of What is the role of microglial cells...

Question 7

A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________.

Accepted Answer

The answer of A chemical messenger that does not directly...

Question 8

Match the following:
-Different types of sensory input can have the same ultimate effect.

Accepted Answer

A) Parallel after-discharge circuit 
B) Reverberating circuit 
C) Diverging circuit 
D) Converging circuit

Question 9

If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________.

Accepted Answer

A)  the impulse would move to the axon terminal only, and the muscle contraction would occur 
B)  the impulse would spread bidirectionally 
C)  muscle contraction would occur 
D)  the impulse would move to the axon terminal only

Question 10

Which of the following is not true of graded potentials?

Accepted Answer

A)  They increase amplitude as they move away from the stimulus point. 
B)  They can be called postsynaptic potentials. 
C)  They can form on receptor endings. 
D)  They are short-lived.

Question 11

Match the following:
-Involved in activating fibers of a skeletal muscle such as the biceps muscle.

Accepted Answer

A) Parallel after-discharge circuit 
B) Reverberating circuit 
C) Diverging circuit 
D) Converging circuit

Question 12

Bipolar neurons are commonly ________.

Accepted Answer

A)  motor neurons 
B)  called neuroglial cells 
C)  found in the retina of the eye 
D)  found in ganglia

Question 13

Match the following:
-One incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit.

Accepted Answer

A) Parallel after-discharge circuit 
B) Reverberating circuit 
C) Diverging circuit 
D) Converging circuit

Question 14

Strong stimuli cause the amplitude of action potentials generated to increase.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not a function of the autonomic nervous system?

Accepted Answer

A)  innervation of smooth muscle of the digestive tract 
B)  innervation of skeletal muscle 
C)  innervation of cardiac muscle 
D)  innervation of glands

Question 16

Figure 11.2
Using Figure 11.2, match the following:
-Synaptic cleft.

Accepted Answer

A) C 
B) E 
C) B 
D) D 
E) A

Question 17

Immediately after an action potential has peaked,which of the following channels will open?

Accepted Answer

A)  voltage gated calcium channels 
B)  chemically gated chloride channels 
C)  voltage gated potassium channels 
D)  voltage gated sodium channels

Question 18

During depolarization,the inside of the neuron's membrane becomes less negative.

Accepted Answer

A) True 
 B)False

Question 19

Match the following:
-Also called a nerve impulse transmitted by axons.

Accepted Answer

A) Depolarization 
B) Action potential 
C) Relative refractory period 
D) Absolute refractory period 
E) Repolarization

Question 20

Multiple sclerosis (MS)is a disease in which the myelin sheaths are destroyed.What process does this interfere with and what would be the consequence?

Accepted Answer

The answer of Multiple sclerosis (MS)is a disease in which...

Exam 11: Fundamentals of the Nervous System and Nervous Tissue

What symptoms would a nurse focus on in his or her care of a patient with multiple sclerosis?

Figure 11.1 Using Figure 11.1, match the following: -Which neuron would activate to a muscle?

Meningitis can be caused by infection of the central nervous system by bacteria.Which cells would be most responsible for removing the infection?

Because all action potentials are alike,how does the brain separate situations that require immediate attention from ordinary "positional" reports?

What is the role of microglial cells and why are they so important in the CNS?

A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________.

Match the following: -Different types of sensory input can have the same ultimate effect.

If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________.

Which of the following is not true of graded potentials?

Match the following: -Involved in activating fibers of a skeletal muscle such as the biceps muscle.

Bipolar neurons are commonly ________.

Match the following: -One incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit.

Strong stimuli cause the amplitude of action potentials generated to increase.

Which of the following is not a function of the autonomic nervous system?

Figure 11.2 Using Figure 11.2, match the following: -Synaptic cleft.

Immediately after an action potential has peaked,which of the following channels will open?

During depolarization,the inside of the neuron's membrane becomes less negative.

Match the following: -Also called a nerve impulse transmitted by axons.

Multiple sclerosis (MS)is a disease in which the myelin sheaths are destroyed.What process does this interfere with and what would be the consequence?