Question 1

Along a neuron, the correct pathway for impulse conduction is:

Accepted Answer

A) dendrite, axon, cell body, and receptor. 
B) dendrite, cell body, and axon. 
C) axon, cell body, and dendrite. 
D) receptor, axon, and cell body. 
A) dendrite, axon, cell body, and receptor. 
B) dendrite, cell body, and axon. 
C) axon, cell body, and dendrite. 
D) receptor, axon, and cell body.

Question 2

The name for the astrocyte comes from its shape.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements does not apply to ependymal cells?

Accepted Answer

A) They form the sheets of cells that line fluid-filled cavities in the brain. 
B) They make up part of the blood-brain barrier. 
C) They produce fluid that fills the cavities in the brain. 
D) They have cilia to move fluid in the brain. 
A) They form the sheets of cells that line fluid-filled cavities in the brain. 
B) They make up part of the blood-brain barrier. 
C) They produce fluid that fills the cavities in the brain. 
D) They have cilia to move fluid in the brain.

Question 4

All reflex arcs contain an interneuron.

Accepted Answer

A) True 
 B)False

Question 5

The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the:

Accepted Answer

A) somatic nervous system. 
B) autonomic nervous system. 
C) central nervous system. 
D) afferent division. 
A) somatic nervous system. 
B) autonomic nervous system. 
C) central nervous system. 
D) afferent division.

Question 6

Microglia are associated with the formation of the blood-brain barrier.

Accepted Answer

A) True 
 B)False

Question 7

A neuron that has only one axon but several dendrites is classified as a _____ neuron.

Accepted Answer

A) multipolar 
B) bipolar 
C) unipolar 
D) multidendritic 
A) multipolar 
B) bipolar 
C) unipolar 
D) multidendritic

Question 8

The nervous system can be divided according to structure, direction of information flow, and speed of conduction.

Accepted Answer

A) True 
 B)False

Question 9

Match each part of the nervous system with its corresponding description.
-Produces the "fight-or-flight" response

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 10

Most unipolar neurons are usually:

Accepted Answer

A) motor neurons. 
B) neurons of the parasympathetic nervous system. 
C) sensory neurons. 
D) neurons of the sympathetic nervous system. 
A) motor neurons. 
B) neurons of the parasympathetic nervous system. 
C) sensory neurons. 
D) neurons of the sympathetic nervous system.

Question 11

In the human nervous system:

Accepted Answer

A) most of the cells are neurons. 
B) most of the cells are glia cells. 
C) there are almost equal numbers of glia cells and neurons. 
D) the ratio of cells is unknown because of the complexity of the nervous system. 
A) most of the cells are neurons. 
B) most of the cells are glia cells. 
C) there are almost equal numbers of glia cells and neurons. 
D) the ratio of cells is unknown because of the complexity of the nervous system.

Question 12

Only axons are covered in myelin.

Accepted Answer

A) True 
 B)False

Question 13

Nerve fibers with many Schwann cells forming a thick myelin sheath are called myelinated fibers, or gray fibers.

Accepted Answer

A) True 
 B)False

Question 14

Astrocytes, the star-shaped glia cells, may be able to transmit information along "astrocyte pathways."

Accepted Answer

A) True 
 B)False

Question 15

The nervous system can be divided:

Accepted Answer

A) according to its structure. 
B) according to direction of information flow. 
C) by control of effectors. 
D) in all of the above ways. 
A) according to its structure. 
B) according to direction of information flow. 
C) by control of effectors. 
D) in all of the above ways.

Question 16

Only astrocytes, microglia, and oligodendrocytes are found in the CNS; Schwann cells and ependymal cells are found in the PNS.

Accepted Answer

A) True 
 B)False

Question 17

Some astrocytes have cilia that help keep the fluid in the nervous system moving.

Accepted Answer

A) True 
 B)False

Exam 18: Nervous System Cells

Along a neuron, the correct pathway for impulse conduction is:

The name for the astrocyte comes from its shape.

Which of the following statements does not apply to ependymal cells?

All reflex arcs contain an interneuron.

The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the:

Microglia are associated with the formation of the blood-brain barrier.

A neuron that has only one axon but several dendrites is classified as a _____ neuron.

The nervous system can be divided according to structure, direction of information flow, and speed of conduction.

Match each part of the nervous system with its corresponding description. -Produces the "fight-or-flight" response

Most unipolar neurons are usually:

In the human nervous system:

Only axons are covered in myelin.

Nerve fibers with many Schwann cells forming a thick myelin sheath are called myelinated fibers, or gray fibers.

Astrocytes, the star-shaped glia cells, may be able to transmit information along "astrocyte pathways."

The nervous system can be divided:

Only astrocytes, microglia, and oligodendrocytes are found in the CNS; Schwann cells and ependymal cells are found in the PNS.

Some astrocytes have cilia that help keep the fluid in the nervous system moving.

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

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