Question 1

________ carry sensory information to the CNS. (Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

Afferent neurons

Question 2

The nervous tissue outside of the central nervous system composes the ________ nervous system.

Accepted Answer

peripheral

Question 3

Rabies is caused by a virus that attacks the central nervous system.The virus is normally introduced by an animal bite that breaks the surface of the skin.Since the virus is not motile,how does it travel to the central nervous system?

Accepted Answer

When the skin is broken by an animal bite some cutaneous receptors are physically damaged.It is through these damaged axons that the virus gains entrance to the neuron.Retrograde axoplasmic transport carries the virus to the central nervous system,where it can reproduce and spread.

Question 4

Figure 12-1 The Neuron
Use Figure 12-1 to answer the following questions:
-Identify the structure labeled "4."

Accepted Answer

A) synaptic terminals 
B) telodendria 
C) dendritic spines 
D) collateral branches 
E) axons 
A) synaptic terminals 
B) telodendria 
C) dendritic spines 
D) collateral branches 
E) axons

Question 5

After a stroke,what type of glial cell accumulates within the affected brain region?

Accepted Answer

A) Schwann cells 
B) satellite cells 
C) oligodendrocytes 
D) microglia 
E) ependymal cells 
A) Schwann cells 
B) satellite cells 
C) oligodendrocytes 
D) microglia 
E) ependymal cells

Question 6

Opioids relieve pain by blocking the release of

Accepted Answer

A) substance O. 
B) substance P. 
C) substance Q. 
D) substance X. 
E) None of the answers are correct. 
A) substance O. 
B) substance P. 
C) substance Q. 
D) substance X. 
E) None of the answers are correct.

Question 7

The period during which an excitable membrane can respond again,but only if the stimulus is greater than the threshold stimulus,is the ________.

Accepted Answer

relative r

Question 8

The ________ nervous system controls the skeletal muscles.

Accepted Answer

A) sympathetic 
B) parasympathetic 
C) afferent 
D) somatic 
E) autonomic 
A) sympathetic 
B) parasympathetic 
C) afferent 
D) somatic 
E) autonomic

Question 9

Regions of the CNS where neuron cell bodies dominate constitute the ________ matter.

Accepted Answer

The answer of Regions of the CNS where neuron cell...

Question 10

The separation of positive and negative charges across the membrane creates a ________ difference,or voltage.

Accepted Answer

The answer of The separation of positive and negative charges...

Question 11

Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have which effect?

Accepted Answer

A) depolarize it 
B) hyperpolarize it 
C) increase the magnitude of the potassium equilibrium potential 
D) decrease the magnitude of the potassium equilibrium potential 
E) both hyperpolarize it and decrease the magnitude of the potassium equilibrium potential 
A) depolarize it 
B) hyperpolarize it 
C) increase the magnitude of the potassium equilibrium potential 
D) decrease the magnitude of the potassium equilibrium potential 
E) both hyperpolarize it and decrease the magnitude of the potassium equilibrium potential

Question 12

The plasma membrane of an axon is called the ________.

Accepted Answer

The answer of The plasma membrane of an axon is...

Question 13

________ are the most numerous type of neuron in the CNS.

Accepted Answer

A) Sensory neurons 
B) Motor neurons 
C) Unipolar neurons 
D) Bipolar neurons 
E) Interneurons 
A) Sensory neurons 
B) Motor neurons 
C) Unipolar neurons 
D) Bipolar neurons 
E) Interneurons

Question 14

Which type of synapse is most common in the nervous system?

Accepted Answer

A) chemical 
B) electrical 
C) mechanical 
D) processing 
E) radiative 
A) chemical 
B) electrical 
C) mechanical 
D) processing 
E) radiative

Question 15

The function of the astrocytes in the CNS includes which of the following?

Accepted Answer

A) adjusting the composition of the interstitial fluid 
B) guiding neuron development 
C) maintaining the blood-brain barrier 
D) repairing damaged neural tissue 
E) All of the answers are correct. 
A) adjusting the composition of the interstitial fluid 
B) guiding neuron development 
C) maintaining the blood-brain barrier 
D) repairing damaged neural tissue 
E) All of the answers are correct.

Question 16

________ account for roughly half of the volume of the nervous system.

Accepted Answer

A) Axons 
B) Dendrites 
C) Neuroglia 
D) Synapses 
E) Efferent fibers 
A) Axons 
B) Dendrites 
C) Neuroglia 
D) Synapses 
E) Efferent fibers

Question 17

The ________ division of the peripheral nervous system brings sensory information to the central nervous system.

Accepted Answer

The answer of The ________ division of the peripheral nervous...

Question 18

The buildup of depolarization when EPSPs arrive in rapid succession is called ________ summation.

Accepted Answer

The answer of The buildup of depolarization when EPSPs arrive...

Question 19

Each of the following is an example of a neuroeffector junction,except the junction between a neuron and a(n)

Accepted Answer

A) skeletal muscle cell. 
B) smooth muscle cell. 
C) endocrine gland cell. 
D) exocrine gland cell. 
E) nerve cell. 
A) skeletal muscle cell. 
B) smooth muscle cell. 
C) endocrine gland cell. 
D) exocrine gland cell. 
E) nerve cell.

Question 20

Any stimulus that opens ________ ion channel will produce a graded potential.

Accepted Answer

A) a voltage-gated 
B) a chemically-gated 
C) a sodium 
D) a mechanically-gated 
E) All of the answers are correct. 
A) a voltage-gated 
B) a chemically-gated 
C) a sodium 
D) a mechanically-gated 
E) All of the answers are correct.

Exam 12: Neural Tissue

________ carry sensory information to the CNS. (Note: Be sure to capitalize the first letter of your answer).

The nervous tissue outside of the central nervous system composes the ________ nervous system.

Rabies is caused by a virus that attacks the central nervous system.The virus is normally introduced by an animal bite that breaks the surface of the skin.Since the virus is not motile,how does it travel to the central nervous system?

Figure 12-1 The Neuron Use Figure 12-1 to answer the following questions: -Identify the structure labeled "4."

After a stroke,what type of glial cell accumulates within the affected brain region?

Opioids relieve pain by blocking the release of

The period during which an excitable membrane can respond again,but only if the stimulus is greater than the threshold stimulus,is the ________.

The ________ nervous system controls the skeletal muscles.

Regions of the CNS where neuron cell bodies dominate constitute the ________ matter.

The separation of positive and negative charges across the membrane creates a ________ difference,or voltage.

Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have which effect?

The plasma membrane of an axon is called the ________.

________ are the most numerous type of neuron in the CNS.

Which type of synapse is most common in the nervous system?

The function of the astrocytes in the CNS includes which of the following?

________ account for roughly half of the volume of the nervous system.

The ________ division of the peripheral nervous system brings sensory information to the central nervous system.

The buildup of depolarization when EPSPs arrive in rapid succession is called ________ summation.

Each of the following is an example of a neuroeffector junction,except the junction between a neuron and a(n)

Any stimulus that opens ________ ion channel will produce a graded potential.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters