Question 1

What group of cells provides support and protection for neurons?

Accepted Answer

A)  oligodendrocytes 
B)  Schwann cells 
C)  ependymal cells 
D)  glial cells (or neuroglia) 
A)  oligodendrocytes 
B)  Schwann cells 
C)  ependymal cells 
D)  glial cells (or neuroglia) D

Question 2

Saltatory propagation differs from continuous propagation in that ________.

Accepted Answer

A)  saltatory propagation occurs when an action potential moves from node to node along myelinated axons 
B)  saltatory propagation is slower than continuous propagation. 
C)  continuous propagation occurs when an action potential moves from node to node along unmyelinated axons 
D)  There is no difference between the two types of action potential propagation. 
A)  saltatory propagation occurs when an action potential moves from node to node along myelinated axons 
B)  saltatory propagation is slower than continuous propagation. 
C)  continuous propagation occurs when an action potential moves from node to node along unmyelinated axons 
D)  There is no difference between the two types of action potential propagation. A

Question 3

________ form myelin sheaths in the peripheral nervous system,whereas ________ form myelin sheaths in the central nervous system.

Accepted Answer

A)  Astrocytes; oligodendrocytes 
B)  Schwann cells; oligodendrocytes 
C)  Oligodendrocytes; Schwann cells 
D)  Astrocytes; ependymal cells 
A)  Astrocytes; oligodendrocytes 
B)  Schwann cells; oligodendrocytes 
C)  Oligodendrocytes; Schwann cells 
D)  Astrocytes; ependymal cells B

Question 4

Cranial and spinal nerve fascicles are covered by the ________.

Accepted Answer

A)  telodendrion 
B)  epineurium 
C)  microglia 
D)  perineurium 
A)  telodendrion 
B)  epineurium 
C)  microglia 
D)  perineurium

Question 5

Which of the following types of glial cells connect neurons to blood vessels,helps form the blood-brain barrier,and assists in the regulation of oxygen,carbon dioxide,and nutrients?

Accepted Answer

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

Question 6

Where are bipolar neurons located?

Accepted Answer

A)  sensory ganglia for spinal nerves and most cranial nerve ganglia 
B)  retina of the eye, inner ear, and the olfactory epithelium in the nasal cavity 
C)  various brain regions 
D)  cerebral cortex, cerebellar cortex, and gray matter in the spinal cord 
A)  sensory ganglia for spinal nerves and most cranial nerve ganglia 
B)  retina of the eye, inner ear, and the olfactory epithelium in the nasal cavity 
C)  various brain regions 
D)  cerebral cortex, cerebellar cortex, and gray matter in the spinal cord

Question 7

Neuron processes that carry impulses toward the cell body are called ________.

Accepted Answer

A)  Nissl bodies 
B)  dendrites 
C)  nodes 
D)  axons 
A)  Nissl bodies 
B)  dendrites 
C)  nodes 
D)  axons

Question 8

Which of the following statements is correct?

Accepted Answer

A)  Myelin sheaths form an insulating layer around the axons of neurons in the central and peripheral nervous systems. These structures function to slow the transmission of impulses along the axon. 
B)  Myelin sheaths form an insulating layer around the axons of neurons in the central and peripheral nervous systems. These structures function to speed up the transmission of impulses along the axon. 
C)  Myelin sheaths form an insulating layer around the axons of neurons only in the peripheral nervous system. These structures function to speed up the transmission of impulses along the axon. 
D)  Myelin sheaths form an insulating layer around the cell bodies of neurons in the central and peripheral nervous systems. These structures function to speed up the transmission of impulses along the axon. 
A)  Myelin sheaths form an insulating layer around the axons of neurons in the central and peripheral nervous systems. These structures function to slow the transmission of impulses along the axon. 
B)  Myelin sheaths form an insulating layer around the axons of neurons in the central and peripheral nervous systems. These structures function to speed up the transmission of impulses along the axon. 
C)  Myelin sheaths form an insulating layer around the axons of neurons only in the peripheral nervous system. These structures function to speed up the transmission of impulses along the axon. 
D)  Myelin sheaths form an insulating layer around the cell bodies of neurons in the central and peripheral nervous systems. These structures function to speed up the transmission of impulses along the axon.

Question 9

________ neurons possess one axon and one dendrite.

Accepted Answer

A)  Bipolar 
B)  Multipolar 
C)  Unipolar 
D)  Anaxonic 
A)  Bipolar 
B)  Multipolar 
C)  Unipolar 
D)  Anaxonic

Question 10

Complete the following statement: The posterior horn of the gray matter of the spinal cord ________.

Accepted Answer

A)  contains the cell bodies of autonomic motor neurons in thoracic and lumbar spinal cord levels 
B)  contains the cell bodies of multipolar neurons that contribute motor fibers to spinal nerves 
C)  contains axons of sensory neurons and cell bodies of interneurons 
D)  is a narrow band of tissue that connects the gray matter on each side of the spinal cord 
A)  contains the cell bodies of autonomic motor neurons in thoracic and lumbar spinal cord levels 
B)  contains the cell bodies of multipolar neurons that contribute motor fibers to spinal nerves 
C)  contains axons of sensory neurons and cell bodies of interneurons 
D)  is a narrow band of tissue that connects the gray matter on each side of the spinal cord

Question 11

Which of the following types of neurons serves as motor neurons for voluntary and involuntary movements?

Accepted Answer

A)  bipolar neurons 
B)  anaxonic neurons 
C)  unipolar neurons 
D)  multipolar neurons 
A)  bipolar neurons 
B)  anaxonic neurons 
C)  unipolar neurons 
D)  multipolar neurons

Question 12

Which of the following statements is correct?

Accepted Answer

A)  The gray matter of the cerebellum is referred to as the arbor vitae or the "tree of life." 
B)  The white matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia can be found in the gray matter. 
C)  The white matter of the spinal cord has a characteristic butterfly shape. 
D)  The gray matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia appear white and are insulated. 
A)  The gray matter of the cerebellum is referred to as the arbor vitae or the "tree of life." 
B)  The white matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia can be found in the gray matter. 
C)  The white matter of the spinal cord has a characteristic butterfly shape. 
D)  The gray matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia appear white and are insulated.

Question 13

________ contains mostly myelinated axons,whereas ________ contains cell bodies,dendrites,and unmyelinated axon fibers.

Accepted Answer

A)  White matter; gray matter 
B)  White matter; cerebral medulla 
C)  Gray matter; white matter 
D)  Cerebral cortex; white matter 
A)  White matter; gray matter 
B)  White matter; cerebral medulla 
C)  Gray matter; white matter 
D)  Cerebral cortex; white matter

Question 14

The ________ lies between the presynaptic and postsynaptic membranes.

Accepted Answer

A)  synaptic knob 
B)  cell body 
C)  synaptic cleft 
D)  secretory vesicles 
A)  synaptic knob 
B)  cell body 
C)  synaptic cleft 
D)  secretory vesicles

Question 15

A junction specialized for communication between neurons is called a ________.

Accepted Answer

A)  dendrite 
B)  axon 
C)  telodendrion 
D)  synapse 
A)  dendrite 
B)  axon 
C)  telodendrion 
D)  synapse

Question 16

The spinal nerves of the PNS are formed by the combination of ________.

Accepted Answer

A)  white matter and gray matter 
B)  a ventral root and a dorsal root 
C)  an anterior horn and a posterior horn 
D)  a dorsal root ganglion and a ventral root 
A)  white matter and gray matter 
B)  a ventral root and a dorsal root 
C)  an anterior horn and a posterior horn 
D)  a dorsal root ganglion and a ventral root

Question 17

Which type of neuroglia surrounds cell bodies in peripheral ganglia and regulates the continuous exchange of nutrients and waste products between neurons and their environment?

Accepted Answer

A)  Schwann cells 
B)  microglia 
C)  satellite cell 
D)  astrocytes 
A)  Schwann cells 
B)  microglia 
C)  satellite cell 
D)  astrocytes

Question 18

Put the steps of impulse transmission at a synapse in the correct order.1.Action potential promotes the entry of calcium ions into the synaptic knob.2.Neurotransmitter diffuses across the synaptic cleft.3.The presynaptic membrane releases neurotransmitter by exocytosis.4.Nerve impulse travels along the axon to the synaptic terminal.5.Neurotransmitter binds to receptors on the postsynaptic membrane.6.Secretory vesicles containing neurotransmitter fuse with the presynaptic membrane.

Accepted Answer

A)  4, 1, 6, 2, 3, 5 
B)  4, 1, 6, 3, 2, 5 
C)  1, 4, 6, 3, 2, 5 
D)  3, 2, 4, 1, 6, 5 
A)  4, 1, 6, 2, 3, 5 
B)  4, 1, 6, 3, 2, 5 
C)  1, 4, 6, 3, 2, 5 
D)  3, 2, 4, 1, 6, 5

Question 19

The three layers of the cerebellar cortex are the ________.

Accepted Answer

A)  molecular layer, Purkinje cell layer, and the cerebellar nuclei 
B)  cerebrum, Purkinje cell layer, and the molecular layer 
C)  molecular layer, granular layer, and the arbor vitae 
D)  molecular layer, Purkinje cell layer, and the granular layer 
A)  molecular layer, Purkinje cell layer, and the cerebellar nuclei 
B)  cerebrum, Purkinje cell layer, and the molecular layer 
C)  molecular layer, granular layer, and the arbor vitae 
D)  molecular layer, Purkinje cell layer, and the granular layer

Question 20

The ________ is the layer of connective tissue that surrounds a nerve.

Accepted Answer

A)  fascicle 
B)  perineurium 
C)  epineurium 
D)  axon 
A)  fascicle 
B)  perineurium 
C)  epineurium 
D)  axon

Exam 14: Nervous Tissue

What group of cells provides support and protection for neurons?

Saltatory propagation differs from continuous propagation in that ________.

________ form myelin sheaths in the peripheral nervous system,whereas ________ form myelin sheaths in the central nervous system.

Cranial and spinal nerve fascicles are covered by the ________.

Which of the following types of glial cells connect neurons to blood vessels,helps form the blood-brain barrier,and assists in the regulation of oxygen,carbon dioxide,and nutrients?

Where are bipolar neurons located?

Neuron processes that carry impulses toward the cell body are called ________.

Which of the following statements is correct?

________ neurons possess one axon and one dendrite.

Complete the following statement: The posterior horn of the gray matter of the spinal cord ________.

Which of the following types of neurons serves as motor neurons for voluntary and involuntary movements?

Which of the following statements is correct?

________ contains mostly myelinated axons,whereas ________ contains cell bodies,dendrites,and unmyelinated axon fibers.

The ________ lies between the presynaptic and postsynaptic membranes.

A junction specialized for communication between neurons is called a ________.

The spinal nerves of the PNS are formed by the combination of ________.

Which type of neuroglia surrounds cell bodies in peripheral ganglia and regulates the continuous exchange of nutrients and waste products between neurons and their environment?

The three layers of the cerebellar cortex are the ________.

The ________ is the layer of connective tissue that surrounds a nerve.

Body Organization and Terminology

Care and Use of the Compound Light Microscope

Cell Structure and Cell Division

Membrane Transport

Tissues

The Integumentary System

Introduction to the Skeletal System and the Axial Skeleton

The Appendicular Skeleton

Articulations

Introduction to Skeletal Muscle

Muscles of the Head, Neck, and Trunk

Muscles of the Upper and Lower Limbs

Physiology of the Muscular System

The Brain and Cranial Nerves

The Spinal Cord and Spinal Nerves

Human Reflex Physiology

Special Senses

The Endocrine System

Blood Cells

Gross Anatomy of the Heart

Anatomy of Blood Vessels

Cardiovascular Physiology

The Lymphatic System

Anatomy of the Respiratory System

Respiratory Physiology

Anatomy of the Digestive System

Actions of a Digestive Enzyme

Anatomy of the Urinary System

Urinary Physiology

The Male Reproductive System

The Female Reproductive System

Filters

form myelin sheaths in the peripheral nervous system,whereas form myelin sheaths in the central nervous system.

contains mostly myelinated axons,whereas contains cell bodies,dendrites,and unmyelinated axon fibers.