Question 1

Regeneration of nerve fibers will occur only if the cell body is intact and the fibers have a neurilemma.

Accepted Answer

A) True 
 B)False

Question 2

Match each term with its definition or description.
-Microscopic gaps in the myelin sheath

Accepted Answer

A) Cell body 
B) Axon 
C) Nodes of Ranvier 
D) Dendrite 
E) Myelin
F)Neurofibrils 
A) Cell body 
B) Axon 
C) Nodes of Ranvier 
D) Dendrite 
E) Myelin
F)Neurofibrils

Question 3

Match each part of the nervous system with its corresponding description.
-Subdivision that carries information from the CNS to skeletal muscle

Accepted Answer

A) Afferent division 
B) Autonomic nervous system 
C) Central nervous system 
D) Efferent division 
E) Parasympathetic division
F)PNS
G)Somatic nervous system
H)Sympathetic division 
A) Afferent division 
B) Autonomic nervous system 
C) Central nervous system 
D) Efferent division 
E) Parasympathetic division
F)PNS
G)Somatic nervous system
H)Sympathetic division

Question 4

The blood-brain barrier is so effective that only water molecules are able to cross it.

Accepted Answer

A) True 
 B)False

Question 5

If a person were in a high-stress, emergency situation, the sympathetic division of the autonomic nervous system would be active.

Accepted Answer

A) True 
 B)False

Question 6

Ependymal cells act like epithelial cells in the CNS, forming thin sheets that line cavities.

Accepted Answer

A) True 
 B)False

Question 7

Schwann cells have a function in the PNS that is similar to that of which cells in the CNS?

Accepted Answer

A) Oligodendrocytes 
B) Astrocytes 
C) Microglia 
D) Ependymal cells 
A) Oligodendrocytes 
B) Astrocytes 
C) Microglia 
D) Ependymal cells

Question 8

The largest and most numerous types of neuroglia are the:

Accepted Answer

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

Question 9

The nervous system consists of the brain, spinal cord, and nerves.

Accepted Answer

A) True 
 B)False

Question 10

One distinction between ipsilateral and contralateral reflexes is that contralateral reflexes have interneurons and ipsilateral reflexes do not.

Accepted Answer

A) True 
 B)False

Question 11

Match each of the following cell types with its corresponding description.
-Type of neuroglia that forms neurilemma

Accepted Answer

A) Astrocyte 
B) Oligodendrocyte 
C) Microglia 
D) Schwann cell 
E) Ependymal cell 
A) Astrocyte 
B) Oligodendrocyte 
C) Microglia 
D) Schwann cell 
E) Ependymal cell

Question 12

There are differences between the central and peripheral nervous systems concerning the repair of damaged fibers.

Accepted Answer

A) True 
 B)False

Question 13

The microglia engulf and destroy microorganisms and cellular debris.

Accepted Answer

A) True 
 B)False

Question 14

Ependymal cells engulf and destroy microbes and cellular debris in inflamed or degenerating brain tissue.

Accepted Answer

A) True 
 B)False

Question 15

What is the difference between nuclei and ganglia?

Accepted Answer

Nuclei and ganglia are both structures r

Question 16

Rapid succession stimulation of a postsynaptic neuron by a synaptic knob is called an ipsilateral reflex.

Accepted Answer

A) True 
 B)False

Question 17

Groups of cell bodies located in the brain or spinal cord are referred to as ganglia.

Accepted Answer

A) True 
 B)False

Question 18

The nervous system and the endocrine system share a common function of communication.

Accepted Answer

A) True 
 B)False

Question 19

The PNS includes both efferent and afferent nerves.

Accepted Answer

A) True 
 B)False

Question 20

What is the relationship between the afferent and efferent neurons of the reflex arc?

Accepted Answer

A) The afferent neurons move signals to the CNS, and the efferent neurons move signals away from the CNS. 
B) The afferent neurons move signals away from the CNS, and the efferent neurons move signals to the CNS. 
C) Afferent neurons are present in the brain, and efferent neurons are present at the sensory site. 
D) None. Efferent neurons are only present in gray matter of the brain and are needed for the reflex arc to work correctly. 
A) The afferent neurons move signals to the CNS, and the efferent neurons move signals away from the CNS. 
B) The afferent neurons move signals away from the CNS, and the efferent neurons move signals to the CNS. 
C) Afferent neurons are present in the brain, and efferent neurons are present at the sensory site. 
D) None. Efferent neurons are only present in gray matter of the brain and are needed for the reflex arc to work correctly.

Exam 18: Nervous System Cells

Regeneration of nerve fibers will occur only if the cell body is intact and the fibers have a neurilemma.

Match each term with its definition or description. -Microscopic gaps in the myelin sheath

Match each part of the nervous system with its corresponding description. -Subdivision that carries information from the CNS to skeletal muscle

The blood-brain barrier is so effective that only water molecules are able to cross it.

If a person were in a high-stress, emergency situation, the sympathetic division of the autonomic nervous system would be active.

Ependymal cells act like epithelial cells in the CNS, forming thin sheets that line cavities.

Schwann cells have a function in the PNS that is similar to that of which cells in the CNS?

The largest and most numerous types of neuroglia are the:

The nervous system consists of the brain, spinal cord, and nerves.

One distinction between ipsilateral and contralateral reflexes is that contralateral reflexes have interneurons and ipsilateral reflexes do not.

Match each of the following cell types with its corresponding description. -Type of neuroglia that forms neurilemma

There are differences between the central and peripheral nervous systems concerning the repair of damaged fibers.

The microglia engulf and destroy microorganisms and cellular debris.

Ependymal cells engulf and destroy microbes and cellular debris in inflamed or degenerating brain tissue.

What is the difference between nuclei and ganglia?

Rapid succession stimulation of a postsynaptic neuron by a synaptic knob is called an ipsilateral reflex.

Groups of cell bodies located in the brain or spinal cord are referred to as ganglia.

The nervous system and the endocrine system share a common function of communication.

The PNS includes both efferent and afferent nerves.

What is the relationship between the afferent and efferent neurons of the reflex arc?

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

Filters