Question 1

Interneurons are found

Accepted Answer

A)  only in the visceral nervous system. 
B)  only in the CNS. 
C)  only in the PNS. 
D)  only in the autonomic nervous system. 
A)  only in the visceral nervous system. 
B)  only in the CNS. 
C)  only in the PNS. 
D)  only in the autonomic nervous system. B

Question 2

This region of the neuron contains a single nucleus surrounded by cytoplasm.

Accepted Answer

A)  synapse 
B)  axon terminal 
C)  axon 
D)  cell body 
E)  dendrite 
A)  synapse 
B)  axon terminal 
C)  axon 
D)  cell body 
E)  dendrite D

Question 3

The somatic motor subdivision of the peripheral nervous system is considered to be an involuntary nervous system.

Accepted Answer

A) True 
 B)False  False

Question 4

The type of axon that conducts impulses most slowly is

Accepted Answer

A)  thick, myelinated. 
B)  thick, unmyelinated. 
C)  thin, myelinated. 
D)  thin, unmyelinated. 
A)  thick, myelinated. 
B)  thick, unmyelinated. 
C)  thin, myelinated. 
D)  thin, unmyelinated.

Question 5

In an axodendritic synapse, the region of the postsynaptic neuron that binds the released neurotransmitter is the

Accepted Answer

A)  synapse. 
B)  axon terminal. 
C)  axon. 
D)  cell body. 
E)  dendrite. 
A)  synapse. 
B)  axon terminal. 
C)  axon. 
D)  cell body. 
E)  dendrite.

Question 6

Motor neurons arise primarily from the

Accepted Answer

A)  alar plate. 
B)  basal plate. 
C)  ependyma. 
D)  neural crest. 
A)  alar plate. 
B)  basal plate. 
C)  ependyma. 
D)  neural crest.

Question 7

The peripheral nerve fibers that speed up the movement of the digestive tract are classified as

Accepted Answer

A)  general visceral sensory (afferent). 
B)  special visceral sensory. 
C)  general visceral motor (efferent). 
D)  special somatic motor. 
A)  general visceral sensory (afferent). 
B)  special visceral sensory. 
C)  general visceral motor (efferent). 
D)  special somatic motor.

Question 8

Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier).

Accepted Answer

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

Question 9

The supporting cells of the nervous system that surround and wrap neurons are derived from embryonic neuroepithelial cells from the ectoderm.

Accepted Answer

A) True 
 B)False

Question 10

A monosynaptic reflex arc is an example of

Accepted Answer

A)  a converging circuit. 
B)  parallel processing. 
C)  a reverberating circuit. 
D)  serial processing. 
A)  a converging circuit. 
B)  parallel processing. 
C)  a reverberating circuit. 
D)  serial processing.

Question 11

A node of Ranvier (myelin sheath gap)

Accepted Answer

A)  occurs only in ganglia. 
B)  is one segment of the myelin sheath. 
C)  occurs in the PNS but not in the CNS. 
D)  is a bare region of axonal membrane in myelinated axons only. 
A)  occurs only in ganglia. 
B)  is one segment of the myelin sheath. 
C)  occurs in the PNS but not in the CNS. 
D)  is a bare region of axonal membrane in myelinated axons only.

Question 12

During embryo development, neurons that make "bad" connections

Accepted Answer

A)  are inhibited by chemicals released from astrocytes. 
B)  are turned off by inhibitory synapses in reverberating circuits. 
C)  develop collaterals that seek out appropriate target cells. 
D)  die by apoptosis. 
A)  are inhibited by chemicals released from astrocytes. 
B)  are turned off by inhibitory synapses in reverberating circuits. 
C)  develop collaterals that seek out appropriate target cells. 
D)  die by apoptosis.

Question 13

Use the diagram pictured above to answer the following questions.
-Axodendritic synapses occur between letter "E" on the diagram and this region on a proximal neuron.

Accepted Answer

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

Question 14

The peripheral nerve fibers that measure the degree of stretch in the biceps brachii muscle and its tendons are classified as

Accepted Answer

A)  general somatic sensory. 
B)  general somatic motor. 
C)  special visceral sensory. 
D)  general visceral motor. 
A)  general somatic sensory. 
B)  general somatic motor. 
C)  special visceral sensory. 
D)  general visceral motor.

Question 15

Which of the following is the correct arrangement of a reflex arc?

Accepted Answer

A)  receptor, sensory neuron, integration center, motor neuron, effector 
B)  integration center, receptor, sensory neuron, motor neuron, effector 
C)  effector, sensory neuron, integration center, motor neuron, receptor 
D)  receptor, motor neuron, integration center, effector, sensory neuron 
A)  receptor, sensory neuron, integration center, motor neuron, effector 
B)  integration center, receptor, sensory neuron, motor neuron, effector 
C)  effector, sensory neuron, integration center, motor neuron, receptor 
D)  receptor, motor neuron, integration center, effector, sensory neuron

Question 16

Which of the following is true regarding the basic divisions of the nervous system?

Accepted Answer

A)  The nerves in our arms and legs are part of the central nervous system. 
B)  The brain and spinal cord are part of the peripheral nervous system. 
C)  The central nervous system is in charge of integrating incoming sensory information with past experiences and dictating motor responses. 
D)  The central nervous system includes the spinal nerves and cranial nerves. 
A)  The nerves in our arms and legs are part of the central nervous system. 
B)  The brain and spinal cord are part of the peripheral nervous system. 
C)  The central nervous system is in charge of integrating incoming sensory information with past experiences and dictating motor responses. 
D)  The central nervous system includes the spinal nerves and cranial nerves.

Question 17

Use the diagrams above to answer the following questions.
-Identify which diagram represents cells that produce and circulate cerebrospinal fluid.

Accepted Answer

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

Question 18

Vesicles containing neurotransmitters are located in

Accepted Answer

A)  a synaptic cleft. 
B)  axon terminals. 
C)  the postsynaptic region of dendrites. 
D)  the nodes of Ranvier. 
A)  a synaptic cleft. 
B)  axon terminals. 
C)  the postsynaptic region of dendrites. 
D)  the nodes of Ranvier.

Question 19

Distinguish between converging, diverging, and reverberating neuronal circuits. Identify the role of axon collaterals and terminal branches in these circuits.

Accepted Answer

In converging circuits, a single neuron

Question 20

This tends to be the longest cytoplasmic projection from a neuron.

Accepted Answer

A)  synapse 
B)  axon terminal 
C)  axon 
D)  cell body 
E)  dendrite 
A)  synapse 
B)  axon terminal 
C)  axon 
D)  cell body 
E)  dendrite

Exam 12: Fundamentals of the Nervous System and Nervous Tissue

Interneurons are found

This region of the neuron contains a single nucleus surrounded by cytoplasm.

The somatic motor subdivision of the peripheral nervous system is considered to be an involuntary nervous system.

The type of axon that conducts impulses most slowly is

In an axodendritic synapse, the region of the postsynaptic neuron that binds the released neurotransmitter is the

Motor neurons arise primarily from the

The peripheral nerve fibers that speed up the movement of the digestive tract are classified as

Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier).

The supporting cells of the nervous system that surround and wrap neurons are derived from embryonic neuroepithelial cells from the ectoderm.

A monosynaptic reflex arc is an example of

A node of Ranvier (myelin sheath gap)

During embryo development, neurons that make "bad" connections

Use the diagram pictured above to answer the following questions. -Axodendritic synapses occur between letter "E" on the diagram and this region on a proximal neuron.

The peripheral nerve fibers that measure the degree of stretch in the biceps brachii muscle and its tendons are classified as

Which of the following is the correct arrangement of a reflex arc?

Which of the following is true regarding the basic divisions of the nervous system?

Use the diagrams above to answer the following questions. -Identify which diagram represents cells that produce and circulate cerebrospinal fluid.

Vesicles containing neurotransmitters are located in

Distinguish between converging, diverging, and reverberating neuronal circuits. Identify the role of axon collaterals and terminal branches in these circuits.

This tends to be the longest cytoplasmic projection from a neuron.

The Human Body: an Orientation

Cells: the Living Units

Basic Embryology

Tissues

The Integumentary System

Bones and Skeletal Tissues

Bones, Part 1: the Axial Skeleton

Bones, Part 2: the Appendicular Skeleton

Joints

Skeletal Muscle Tissue

Muscles of the Body

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System and Visceral Sensory Neurons

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels

The Lymphatic and Immune Systems

The Respiratory System

The Digestive System

The Urinary System

The Reproductive System

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