Question 1

What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called?

Accepted Answer

A)  oligodendrocytes 
B)  astrocytes 
C)  ependymal cells 
D)  Schwann cells

Question 2

Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?

Accepted Answer

A)  cholinesterase 
B)  acetylcholine 
C)  norepinephrine 
D)  gamma aminobutyric acid

Question 3

A second nerve impulse cannot be generated until .

Accepted Answer

A)  the membrane potential has been reestablished 
B)  all sodium gates are closed 
C)  proteins have been resynthesized 
D)  the Na ions have been pumped back into the cell

Question 4

The overlapping functions of the nervous system are sensory input, integration, and motor output.

Accepted Answer

A) True 
 B)False

Question 5

Figure 11.1Using Figure 11.1, match the following:
-In a reflex arc, which neuron has its cell body inside the spinal cord?

Accepted Answer

The answer of  Figure 11.1Using Figure 11.1, match the...

Question 6

Which of the following is not a function of astrocytes?

Accepted Answer

A)  guide the migration of young neurons, synapse formation, and helping to determine capillary permeability 
B)  support and brace neurons 
C)  control the chemical environment around neurons 
D)  anchor neurons to blood vessels 
E)  provide the defense for the CNS

Question 7

Figure 11.2Using Figure 11.2, match the following:
-Ion channel.

Accepted Answer

The answer of  Figure 11.2Using Figure 11.2, match the...

Question 8

Unipolar neurons have axons structurally divided into peripheral and central processes.

Accepted Answer

A) True 
 B)False

Question 9

Axon diameter and degree of myelination determine nerve impulse conduction velocity.

Accepted Answer

A) True 
 B)False

Question 10

Collections of nerve cell bodies outside the central nervous system are called .

Accepted Answer

A)  ganglia 
B)  tracts 
C)  nuclei 
D)  nerves

Question 11

Potentials that are short- lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called potentials.

Accepted Answer

The answer of Potentials that are short- lived, local changes...

Question 12

The term central nervous system refers to the .

Accepted Answer

A)  spinal cord and spinal nerves 
B)  brain, spinal cord, and peripheral nerves 
C)  brain and spinal cord 
D)  peripheral and spinal nerves

Question 13

How can a single axon respond to several different kinds of events?

Accepted Answer

The answer of How can a single axon respond to...

Question 14

In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? The interior is .

Accepted Answer

A)  negatively charged and contains less sodium 
B)  positively charged and contains more sodium 
C)  negatively charged and contains more sodium 
D)  positively charged and contains less sodium

Question 15

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

Accepted Answer

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

Question 16

The part of a neuron that conducts impulses away from its cell body is called a(n) _ .

Accepted Answer

A)  Schwann cell 
B)  neurolemma 
C)  axon 
D)  dendrite

Question 17

Figure 11.1Using Figure 11.1, match the following:
-Which neuron would be found in the retina of the eye?

Accepted Answer

The answer of  Figure 11.1Using Figure 11.1, match the...

Question 18

Which of the following is not a chemical class of neurotransmitters?

Accepted Answer

A)  amino acid 
B)  ATP and other purines 
C)  nucleic acid 
D)  biogenic amine 
E)  acetycholine

Question 19

Figure 11.1Using Figure 11.1, match the following:
-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  Figure 11.1Using Figure 11.1, match the...

Question 20

Which of the following is false or incorrect?

Accepted Answer

A)  An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. 
B)  An inhibitory postsynaptic potential occurs if the inhibitory effect is greater than the excitatory, causing hyperpolarization of the membrane. 
C)  A nerve impulse occurs if the excitatory and inhibitory effects are equal.

Exam 11: Fundamentals of the Nervous System and Nervous Tissue

What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called?

Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?

A second nerve impulse cannot be generated until .

The overlapping functions of the nervous system are sensory input, integration, and motor output.

Figure 11.1Using Figure 11.1, match the following: -In a reflex arc, which neuron has its cell body inside the spinal cord?

Which of the following is not a function of astrocytes?

Figure 11.2Using Figure 11.2, match the following: -Ion channel.

Unipolar neurons have axons structurally divided into peripheral and central processes.

Axon diameter and degree of myelination determine nerve impulse conduction velocity.

Collections of nerve cell bodies outside the central nervous system are called .

Potentials that are short- lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called potentials.

The term central nervous system refers to the .

How can a single axon respond to several different kinds of events?

In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? The interior is .

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

The part of a neuron that conducts impulses away from its cell body is called a(n) _ .

Figure 11.1Using Figure 11.1, match the following: -Which neuron would be found in the retina of the eye?

Which of the following is not a chemical class of neurotransmitters?

Figure 11.1Using Figure 11.1, match the following: -A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a .

Which of the following is false or incorrect?