Question 1

Which one of the following steps occurs during the absolute refractory period?

Accepted Answer

A)  The neuron cannot generate an action potential. 
B)  Sodium channels open, releasing sodium ions into the neuron, which causes potassium channels to close. 
C)  Sodium channels open, which causes potassium channels to open. 
D)  A nerve impulse fails to reach threshold. 
E)  Potassium channels open, releasing potassium ions from the neuron; sodium channels close. 
A)  The neuron cannot generate an action potential. 
B)  Sodium channels open, releasing sodium ions into the neuron, which causes potassium channels to close. 
C)  Sodium channels open, which causes potassium channels to open. 
D)  A nerve impulse fails to reach threshold. 
E)  Potassium channels open, releasing potassium ions from the neuron; sodium channels close. A

Question 2

The central nervous system is composed of which of the following?

Accepted Answer

A)  brain and spinal cord 
B)  autonomic nervous system and brain 
C)  somatic division and autonomic division 
D)  sensory division and motor division 
E)  somatic division and motor division 
A)  brain and spinal cord 
B)  autonomic nervous system and brain 
C)  somatic division and autonomic division 
D)  sensory division and motor division 
E)  somatic division and motor division A

Question 3

Which one of the following processes is depicted in the figure above?

Accepted Answer

A)  hyperpolarization of an axon bulb 
B)  repolarization of a neuron 
C)  synaptic transmission 
D)  inhibition of a presynaptic neuron 
E)  antagonistic effects of the parasympathetic and sympathetic nervous systems 
A)  hyperpolarization of an axon bulb 
B)  repolarization of a neuron 
C)  synaptic transmission 
D)  inhibition of a presynaptic neuron 
E)  antagonistic effects of the parasympathetic and sympathetic nervous systems C

Question 4

Which one of the following parts of the brain effectively links the nervous system and the endocrine system?

Accepted Answer

A)  medulla oblongata 
B)  cerebral cortex 
C)  corpus callosum 
D)  hypothalamus 
E)  cerebellum 
A)  medulla oblongata 
B)  cerebral cortex 
C)  corpus callosum 
D)  hypothalamus 
E)  cerebellum

Question 5

Which one of the following activities would be facilitated by the sympathetic nervous system?

Accepted Answer

A)  increased digestion and absorption 
B)  decreased respiratory rate 
C)  increased blood pressure 
D)  decreased heart rate 
E)  increased bladder contraction 
A)  increased digestion and absorption 
B)  decreased respiratory rate 
C)  increased blood pressure 
D)  decreased heart rate 
E)  increased bladder contraction

Question 6

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once.
-its effect is to prepare the body for emergencies

Accepted Answer

A) parasympathetic nervous system 
B) sympathetic nervous system 
A) parasympathetic nervous system 
B) sympathetic nervous system

Question 7

Because the central nervous system is so important to the proper functioning of the body, the brain is protected by the ________ and the spinal cord is protected by the ________.

Accepted Answer

The answer of Because the central nervous system is so...

Question 8

Reestablishment of the resting potential in a neuron following an action potential requires the activity of the sodium-potassium pump.

Accepted Answer

A) True 
 B)False

Question 9

Each of the following statements correctly describes an action potential EXCEPT which one?

Accepted Answer

A)  Once triggered, an action potential always looks the same in form and voltage. 
B)  An action potential continues to propagate itself into the next region of an axon. 
C)  Action potentials are propagated by the sodium-potassium pump. 
D)  Action potentials include a depolarization phase followed by a repolarization phase. 
E)  Action potentials temporarily reverse the polarization of the axon membrane. 
A)  Once triggered, an action potential always looks the same in form and voltage. 
B)  An action potential continues to propagate itself into the next region of an axon. 
C)  Action potentials are propagated by the sodium-potassium pump. 
D)  Action potentials include a depolarization phase followed by a repolarization phase. 
E)  Action potentials temporarily reverse the polarization of the axon membrane.

Question 10

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once.
-postganglionic neurons secrete norepinephrine

Accepted Answer

A) parasympathetic nervous system 
B) sympathetic nervous system 
A) parasympathetic nervous system 
B) sympathetic nervous system

Question 11

The figure above shows a sagittal section through the brain. Match each labeled part (A through F) of the brain with its function.
-the most highly developed part of the brain; the corpus callosum interconnects its two sides; associated with language and conscious thought

Accepted Answer

The answer of   The figure above shows a...

Question 12

The central nervous system is enclosed by membranes or meninges called the

Accepted Answer

A)  dura mater, alma mater, and pia mater. 
B)  fore, mid, and hind meninges. 
C)  dura mater, pia mater, and arachnoid. 
D)  pleura, parietal, and arachnoid. 
E)  glial, Schwann, and interstitial. 
A)  dura mater, alma mater, and pia mater. 
B)  fore, mid, and hind meninges. 
C)  dura mater, pia mater, and arachnoid. 
D)  pleura, parietal, and arachnoid. 
E)  glial, Schwann, and interstitial.

Question 13

Match the following types of neurons with their descriptions.
-transmit impulses toward the central nervous system

Accepted Answer

A) motor neurons 
B) sensory neurons 
C) interneurons 
A) motor neurons 
B) sensory neurons 
C) interneurons

Question 14

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once.
-postganglionic neurons secrete acetylcholine

Accepted Answer

A) parasympathetic nervous system 
B) sympathetic nervous system 
A) parasympathetic nervous system 
B) sympathetic nervous system

Question 15

Both voluntary and involuntary skeletal muscle movement are controlled through which one of the following divisions of the nervous system?

Accepted Answer

A)  sensory division 
B)  sympathetic division 
C)  parasympathetic division 
D)  somatic division 
E)  endocrine division 
A)  sensory division 
B)  sympathetic division 
C)  parasympathetic division 
D)  somatic division 
E)  endocrine division

Question 16

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once.
-preganglionic neurons originate in the brain or sacral region of spinal cord

Accepted Answer

A) parasympathetic nervous system 
B) sympathetic nervous system 
A) parasympathetic nervous system 
B) sympathetic nervous system

Question 17

Control of respiratory rate, heart rate, and blood pressure is integrated through the

Accepted Answer

A)  cerebral cortex. 
B)  cerebellum. 
C)  thalamus. 
D)  hypothalamus. 
E)  medulla oblongata. 
A)  cerebral cortex. 
B)  cerebellum. 
C)  thalamus. 
D)  hypothalamus. 
E)  medulla oblongata.

Question 18

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once.
-preganglionic motor neurons originate in the thoracic and lumbar regions of the spinal cord

Accepted Answer

A) parasympathetic nervous system 
B) sympathetic nervous system 
A) parasympathetic nervous system 
B) sympathetic nervous system

Question 19

Which one of the following establishes and maintains the resting potential?

Accepted Answer

A)  Na+ leak channel 
B)  K+ leak channel 
C)  sodium-potassium pump 
D)  depolarization 
E)  repolarization 
A)  Na+ leak channel 
B)  K+ leak channel 
C)  sodium-potassium pump 
D)  depolarization 
E)  repolarization

Question 20

Twelve pairs of ________ nerves carry nerve impulses from the brain to glands, muscles, head, neck, and abdominal and thoracic cavities.

Accepted Answer

The answer of Twelve pairs of ________ nerves carry nerve...

Exam 11: The Nervous System: Integration and Control

Which one of the following steps occurs during the absolute refractory period?

The central nervous system is composed of which of the following?

Which one of the following processes is depicted in the figure above?

Which one of the following parts of the brain effectively links the nervous system and the endocrine system?

Which one of the following activities would be facilitated by the sympathetic nervous system?

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once. -its effect is to prepare the body for emergencies

Because the central nervous system is so important to the proper functioning of the body, the brain is protected by the ________ and the spinal cord is protected by the ________.

Reestablishment of the resting potential in a neuron following an action potential requires the activity of the sodium-potassium pump.

Each of the following statements correctly describes an action potential EXCEPT which one?

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once. -postganglionic neurons secrete norepinephrine

The figure above shows a sagittal section through the brain. Match each labeled part (A through F) of the brain with its function. -the most highly developed part of the brain; the corpus callosum interconnects its two sides; associated with language and conscious thought

The central nervous system is enclosed by membranes or meninges called the

Match the following types of neurons with their descriptions. -transmit impulses toward the central nervous system

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once. -postganglionic neurons secrete acetylcholine

Both voluntary and involuntary skeletal muscle movement are controlled through which one of the following divisions of the nervous system?

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once. -preganglionic neurons originate in the brain or sacral region of spinal cord

Control of respiratory rate, heart rate, and blood pressure is integrated through the

Determine whether each of the following descriptions is characteristic of the parasympathetic division or the sympathetic division of the autonomic nervous system. Answers may be used more than once. -preganglionic motor neurons originate in the thoracic and lumbar regions of the spinal cord

Which one of the following establishes and maintains the resting potential?

Twelve pairs of ________ nerves carry nerve impulses from the brain to glands, muscles, head, neck, and abdominal and thoracic cavities.

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

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Because the central nervous system is so important to the proper functioning of the body, the brain is protected by the and the spinal cord is protected by the .