Question 1

The telodendria are:

Accepted Answer

A)  the receptor portion of the dendrite. 
B)  where the dendrite attaches to the cell body. 
C)  where the axon leaves the cell body. 
D)  none of the above. 
A)  the receptor portion of the dendrite. 
B)  where the dendrite attaches to the cell body. 
C)  where the axon leaves the cell body. 
D)  none of the above. D

Question 2

Pathways from the autonomic nervous system that form the thoracic region of the spinal cord would be sympathetic pathways.

Accepted Answer

A) True 
 B)False  True

Question 3

Name and briefly describe the types of glia cells found in the nervous system.

Accepted Answer

There are several types of glia cells found in the nervous system, including astrocytes, oligodendrocytes, microglia, and ependymal cells.

1. Astrocytes: These are star-shaped cells that provide physical and metabolic support to neurons. They help regulate the chemical environment of the brain, provide nutrients to neurons, and play a role in the formation and maintenance of synapses.

2. Oligodendrocytes: These cells are responsible for producing myelin, a fatty substance that insulates the axons of neurons in the central nervous system. Myelin helps to speed up the transmission of electrical signals along the axons.

3. Microglia: These are the immune cells of the central nervous system and are responsible for protecting the brain from infection and injury. They also play a role in the removal of damaged cells and debris.

4. Ependymal cells: These cells line the ventricles of the brain and the central canal of the spinal cord. They are involved in the production and circulation of cerebrospinal fluid, which helps to protect and nourish the brain and spinal cord.

Each type of glia cell plays a crucial role in supporting the function and health of the nervous system.

Question 4

Neurons have:

Accepted Answer

A)  complete regeneration capacity. 
B)  no regeneration capacity. 
C)  very limited capacity to repair themselves. 
D)  none of the above. 
A)  complete regeneration capacity. 
B)  no regeneration capacity. 
C)  very limited capacity to repair themselves. 
D)  none of the above.

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Match each term with its definition or description.
-Bundles of intermediate filaments in the neuron

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 8

The myelin sheath is formed by:

Accepted Answer

A)  Nissl bodies. 
B)  nodes of Ranvier. 
C)  Schwann cells. 
D)  neuron cell bodies. 
A)  Nissl bodies. 
B)  nodes of Ranvier. 
C)  Schwann cells. 
D)  neuron cell bodies.

Question 9

Unipolar neurons have no axons.

Accepted Answer

A) True 
 B)False

Question 10

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 11

Pathways from the autonomic nervous system that leave the CNS from the brain would be sympathetic pathways.

Accepted Answer

A) True 
 B)False

Question 12

Nerves are usually made up of a single large neuron.

Accepted Answer

A) True 
 B)False

Question 13

Gray fibers probably do not have nodes of Ranvier.

Accepted Answer

A) True 
 B)False

Question 14

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 15

There are more glia cells in the brain than there are neurons.

Accepted Answer

A) True 
 B)False

Question 16

Match each term with its definition or description.
-Nerve fiber that is highly branched; the name comes from the Greek word for tree

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 17

The name for the astrocyte comes from its shape.

Accepted Answer

A) True 
 B)False

Question 18

Small, distinct regions of gray matter within the CNS are called nuclei.

Accepted Answer

A) True 
 B)False

Question 19

Match each part of the nervous system with its corresponding description.
-Subdivision of the efferent division that transmits information to smooth muscle, cardiac muscle, and glands

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 20

The axon hillock is actually part of the cell body of the neuron.

Accepted Answer

A) True 
 B)False

Exam 18: Nervous System Cells

The telodendria are:

Pathways from the autonomic nervous system that form the thoracic region of the spinal cord would be sympathetic pathways.

Name and briefly describe the types of glia cells found in the nervous system.

Neurons have:

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

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

Match each term with its definition or description. -Bundles of intermediate filaments in the neuron

The myelin sheath is formed by:

Unipolar neurons have no axons.

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

Pathways from the autonomic nervous system that leave the CNS from the brain would be sympathetic pathways.

Nerves are usually made up of a single large neuron.

Gray fibers probably do not have nodes of Ranvier.

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

There are more glia cells in the brain than there are neurons.

Match each term with its definition or description. -Nerve fiber that is highly branched; the name comes from the Greek word for tree

The name for the astrocyte comes from its shape.

Small, distinct regions of gray matter within the CNS are called nuclei.

Match each part of the nervous system with its corresponding description. -Subdivision of the efferent division that transmits information to smooth muscle, cardiac muscle, and glands

The axon hillock is actually part of the cell body of the neuron.

Organization of the Body

Homeostasis

Chemical Basis of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

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Nerve Signaling

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Endocrine Regulation

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