Question 1

This type of neuron has one dendrite and one axon emerging from the cell body.

Accepted Answer

A) Multipolar neuron 
B) Bipolar neuron 
C) Unipolar neuron 
D) Purkinje cell 
E) Renshaw cell 
A) Multipolar neuron 
B) Bipolar neuron 
C) Unipolar neuron 
D) Purkinje cell 
E) Renshaw cell B

Question 2

Which of the labeled cells in the diagram is a neuroglial cell that is located mainly in gray matter and helps maintain the appropriate chemical environment for generation of nerve impulses?

Accepted Answer

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

Question 3

Which of the labeled cells in the diagram is a neuroglial cell that removes debris and acts as a phagocyte?

Accepted Answer

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

Question 4

Describe four ways drugs can modify the effects of neurotransmitters.

Accepted Answer

The answer of Describe four ways drugs can modify the...

Question 5

What specific type of unipolar neuron is shown in the diagram labeled C?

Accepted Answer

A) Merkel disc 
B) Meissner corpuscle 
C) Pacinian corpuscle 
D) nociceptor 
E) Purkinje cell 
A) Merkel disc 
B) Meissner corpuscle 
C) Pacinian corpuscle 
D) nociceptor 
E) Purkinje cell

Question 6

This type of neural circuit consists of a single presynaptic neuron synapsing with several postsynaptic neurons.

Accepted Answer

A) Diverging circuit 
B) Converging circuit 
C) Reverberating circuit 
D) Parallel after-discharge circuit 
E) Normal circuit 
A) Diverging circuit 
B) Converging circuit 
C) Reverberating circuit 
D) Parallel after-discharge circuit 
E) Normal circuit

Question 7

Which of the neurons is called a Meissner corpuscle or a corpuscle of touch?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) Both A and D 
A) A 
B) B 
C) C 
D) D 
E) Both A and D

Question 8

Which of the channels shown in the figure opens and closes randomly?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) All of these choices 
A) A 
B) B 
C) C 
D) D 
E) All of these choices

Question 9

In the CNS,this structure is produced by oligodendrocytes.

Accepted Answer

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

Question 10

Na⁺/K⁺-ATPase is considered to be an electrogenic pump because

Accepted Answer

A) it contributes to the negativity of the resting membrane potential. 
B) the sodium ions are negatively charged. 
C) it exhibits low permeability. 
D) both it contributes to the negativity of the resting membrane potential and the sodium ions are negatively charged. 
E) all of these choices 
A) it contributes to the negativity of the resting membrane potential. 
B) the sodium ions are negatively charged. 
C) it exhibits low permeability. 
D) both it contributes to the negativity of the resting membrane potential and the sodium ions are negatively charged. 
E) all of these choices

Question 11

Briefly describe the events that occur during the depolarizing phase of an action potential.

Accepted Answer

The answer of Briefly describe the events that occur during...

Question 12

Which of the labeled cells in the figure is NOT a neuroglial cell?

Accepted Answer

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

Question 13

Chromatolysis refers to

Accepted Answer

A) break up of lysosomes after neural injury. 
B) Wallerian degeneration after neural injury. 
C) plasticity of neuron. 
D) break up of Nissl bodies after neural injury. 
E) none of these choices 
A) break up of lysosomes after neural injury. 
B) Wallerian degeneration after neural injury. 
C) plasticity of neuron. 
D) break up of Nissl bodies after neural injury. 
E) none of these choices

Question 14

Which of the neurons is considered to be a bipolar neuron?

Accepted Answer

A) A 
B) B 
C) C 
D) All of the neurons. 
E) None of the neurons. 
A) A 
B) B 
C) C 
D) All of the neurons. 
E) None of the neurons.

Question 15

This type of nervous tissue contains neuronal cell bodies,dendrites,unmyelinated axons,axon terminals,and neuroglial cells.

Accepted Answer

A) Gray matter 
B) White matter 
C) Nissl bodies 
D) Ganglia 
E) Nuclei 
A) Gray matter 
B) White matter 
C) Nissl bodies 
D) Ganglia 
E) Nuclei

Question 16

Which of the following types of cells display the property of electrical excitability?

Accepted Answer

A) Muscle cells 
B) Neurons 
C) All of these choices 
D) None of these choices 
A) Muscle cells 
B) Neurons 
C) All of these choices 
D) None of these choices

Question 17

This part of a neuron contains the nucleus and cytoplasm of the Schwann's cell that has formed a myelin sheath around the axon.

Accepted Answer

A) C 
B) D 
C) E 
D) F 
E) G 
A) C 
B) D 
C) E 
D) F 
E) G

Question 18

Wallerian degeneration refers to

Accepted Answer

A) degeneration of the proximal end of axon and myelin sheath after neural injury. 
B) degeneration of the distal end of axon and myelin sheath after neural injury. 
C) break of Nissl bodies after neural injury. 
D) plasticity of neuron. 
E) none of these choices 
A) degeneration of the proximal end of axon and myelin sheath after neural injury. 
B) degeneration of the distal end of axon and myelin sheath after neural injury. 
C) break of Nissl bodies after neural injury. 
D) plasticity of neuron. 
E) none of these choices

Question 19

Which of the neurons is a touch receptor known as a Merkel disc?

Accepted Answer

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

Question 20

Which of the following structures is labeled B in the diagram?

Accepted Answer

A) axon terminal 
B) trigger zone 
C) cell body 
D) peripheral process 
E) dendrites 
A) axon terminal 
B) trigger zone 
C) cell body 
D) peripheral process 
E) dendrites

Exam 12: Nervous Tissue

This type of neuron has one dendrite and one axon emerging from the cell body.

Which of the labeled cells in the diagram is a neuroglial cell that is located mainly in gray matter and helps maintain the appropriate chemical environment for generation of nerve impulses?

Which of the labeled cells in the diagram is a neuroglial cell that removes debris and acts as a phagocyte?

Describe four ways drugs can modify the effects of neurotransmitters.

What specific type of unipolar neuron is shown in the diagram labeled C?

This type of neural circuit consists of a single presynaptic neuron synapsing with several postsynaptic neurons.

Which of the neurons is called a Meissner corpuscle or a corpuscle of touch?

Which of the channels shown in the figure opens and closes randomly?

In the CNS,this structure is produced by oligodendrocytes.

Na⁺/K⁺-ATPase is considered to be an electrogenic pump because

Briefly describe the events that occur during the depolarizing phase of an action potential.

Which of the labeled cells in the figure is NOT a neuroglial cell?

Chromatolysis refers to

Which of the neurons is considered to be a bipolar neuron?

This type of nervous tissue contains neuronal cell bodies,dendrites,unmyelinated axons,axon terminals,and neuroglial cells.

Which of the following types of cells display the property of electrical excitability?

This part of a neuron contains the nucleus and cytoplasm of the Schwann's cell that has formed a myelin sheath around the axon.

Wallerian degeneration refers to

Which of the neurons is a touch receptor known as a Merkel disc?

Which of the following structures is labeled B in the diagram?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: The Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: The Blood

The Cardiovascular System: The Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System, Nonspecific Resistance to Disease, and Immunity

The Digestive System

Metabolism

The Urinary System

The Reproductive Systems

Development and Inheritance

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