Question 1

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 2

This tends to be the longest cytoplasmic projection froma 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

Question 3

Any long axon is called a nerve fiber.

Accepted Answer

A) True 
 B)False

Question 4

Microglia are derived from blood stem cells rather than from neural tube and crest cells.

Accepted Answer

A) True 
 B)False

Question 5

Figure 12.1
Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the region of a neuron where neurotransmitters are released.

Accepted Answer

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

Question 6

Sensory neurons arise primarily from the

Accepted Answer

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

Question 7

Ciliated neuroglial cells that form an epithelium and play an active role in forming and moving cerebrospinal fluid are

Accepted Answer

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

Question 8

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 9

Figure 12.2
Use the diagrams above to answer the following questions.
-Identify which diagram represents a cell that produces a myelin sheath in the central nervous system.

Accepted Answer

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

Question 10

Which cells provide the myelin sheath for neurons in the CNS?

Accepted Answer

A)  Schwann cells 
B)  astrocytes 
C)  microglial cells 
D)  oligodendrocyctes 
A)  Schwann cells 
B)  astrocytes 
C)  microglial cells 
D)  oligodendrocyctes

Question 11

The entire nerve is surrounded by a tough fibrous sheath called the

Accepted Answer

A)  endoneurium. 
B)  perineurium. 
C)  ectoneurium. 
D)  epineurium. 
A)  endoneurium. 
B)  perineurium. 
C)  ectoneurium. 
D)  epineurium.

Question 12

Figure 12.1
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 13

Cytoplasm, organelles, and neurotransmitters move through the cytoplasm of the axon by a mechanism called ________.

Accepted Answer

The answer of Cytoplasm, organelles, and neurotransmitters move through the...

Question 14

The ________ matter of the spinal cord forms a butterfly-shaped structure.

Accepted Answer

The answer of The ________ matter of the spinal cord...

Question 15

________ neurons develop from neural crest cells.

Accepted Answer

The answer of ________ neurons develop from neural crest cells....

Question 16

These regions of the neuron direct electrical currents toward the cell body.

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 17

An axon collateral from one neuron that circles back and synapses with a previous neuron describes

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 18

________ is a progressive disease that destroys patches of myelin in both the brain and spinal cord.

Accepted Answer

Multiple s

Question 19

Most synapses transmit communicating signals using

Accepted Answer

A)  chemical signaling molecules-neurotransmitters. 
B)  electrical impulses travelling through gap junctions. 
C)  physical contact between adjacent neurons. 
D)  chemical signaling molecules released from neuroglia. 
A)  chemical signaling molecules-neurotransmitters. 
B)  electrical impulses travelling through gap junctions. 
C)  physical contact between adjacent neurons. 
D)  chemical signaling molecules released from neuroglia.

Question 20

A somatic motor neuron carries

Accepted Answer

A)  information that signals muscle contraction in the organs in the ventral cavity. 
B)  information, such as pain, from the viscera in the ventral cavity to the CNS. 
C)  motor commands to the skeletal musculature. 
D)  information from the skin to the CNS. 
A)  information that signals muscle contraction in the organs in the ventral cavity. 
B)  information, such as pain, from the viscera in the ventral cavity to the CNS. 
C)  motor commands to the skeletal musculature. 
D)  information from the skin to the CNS.

Exam 12: Fundamentals of the Nervous System and Nervous Tissue

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

This tends to be the longest cytoplasmic projection froma neuron.

Any long axon is called a nerve fiber.

Microglia are derived from blood stem cells rather than from neural tube and crest cells.

Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the region of a neuron where neurotransmitters are released.

Sensory neurons arise primarily from the

Ciliated neuroglial cells that form an epithelium and play an active role in forming and moving cerebrospinal fluid are

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

Figure 12.2 Use the diagrams above to answer the following questions. -Identify which diagram represents a cell that produces a myelin sheath in the central nervous system.

Which cells provide the myelin sheath for neurons in the CNS?

The entire nerve is surrounded by a tough fibrous sheath called the

Figure 12.1 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.

Cytoplasm, organelles, and neurotransmitters move through the cytoplasm of the axon by a mechanism called ________.

The ________ matter of the spinal cord forms a butterfly-shaped structure.

________ neurons develop from neural crest cells.

These regions of the neuron direct electrical currents toward the cell body.

An axon collateral from one neuron that circles back and synapses with a previous neuron describes

________ is a progressive disease that destroys patches of myelin in both the brain and spinal cord.

Most synapses transmit communicating signals using

A somatic motor neuron carries

The Human Body: an Orientation

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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