Question 1

Control of the viscera is the job of the

Accepted Answer

A)  spinal cord. 
B)  conscious control. 
C)  brain. 
D)  autonomic nervous system. 
E)  all of the above 
A)  spinal cord. 
B)  conscious control. 
C)  brain. 
D)  autonomic nervous system. 
E)  all of the above

Question 2

The processing of the same information at the same time by several neuronal pools is called

Accepted Answer

A)  serial processing. 
B)  parallel processing. 
C)  divergent processing. 
D)  convergent processing. 
E)  facilitation. 
A)  serial processing. 
B)  parallel processing. 
C)  divergent processing. 
D)  convergent processing. 
E)  facilitation.

Question 3

The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory and motor information is the

Accepted Answer

A)  medulla. 
B)  pons. 
C)  midbrain. 
D)  cerebellum. 
E)  cerebrum. 
A)  medulla. 
B)  pons. 
C)  midbrain. 
D)  cerebellum. 
E)  cerebrum.

Question 4

In multiple sclerosis, there is progressive and intermittent damage to the myelin sheath of peripheral nerves. This results in poor motor control of the affected area. Why does destruction of the myelin sheath affect motor control?

Accepted Answer

Action potentials travel faster along fi

Question 5

The nerve that controls the biceps brachii muscle is the

Accepted Answer

A)  ulnar. 
B)  radial. 
C)  median. 
D)  axillary. 
E)  musculocutaneous. 
A)  ulnar. 
B)  radial. 
C)  median. 
D)  axillary. 
E)  musculocutaneous.

Question 6

If the dorsal root of a spinal nerve is severed,

Accepted Answer

A)  motor control of skeletal muscles would be impaired. 
B)  motor control of visceral organs would be impaired. 
C)  the spinal cord would not be able to process information at that level. 
D)  the brain would not be able to communicate with that level of the spinal cord. 
E)  incoming sensory information would be disrupted. 
A)  motor control of skeletal muscles would be impaired. 
B)  motor control of visceral organs would be impaired. 
C)  the spinal cord would not be able to process information at that level. 
D)  the brain would not be able to communicate with that level of the spinal cord. 
E)  incoming sensory information would be disrupted.

Question 7

The part of the brain that functions to control skeletal muscles is the

Accepted Answer

A)  medulla oblongata. 
B)  cerebral cortex. 
C)  midbrain. 
D)  diencephalons. 
E)  thalamus. 
A)  medulla oblongata. 
B)  cerebral cortex. 
C)  midbrain. 
D)  diencephalons. 
E)  thalamus.

Question 8

The expected response to the triceps-jerk reflex is

Accepted Answer

A)  the Babinski sign. 
B)  elbow flexion. 
C)  elbow extension. 
D)  plantar flexion. 
E)  arm extension. 
A)  the Babinski sign. 
B)  elbow flexion. 
C)  elbow extension. 
D)  plantar flexion. 
E)  arm extension.

Question 9

Complex motor activities such as riding a bicycle or eating

Accepted Answer

A)  only require neural processing at the level of the cerebrum. 
B)  involve little input from the brain. 
C)  require the coordinated activity of several regions of the brain. 
D)  are controlled at the level of the spinal cord. 
E)  do not require input from the cerebellum. 
A)  only require neural processing at the level of the cerebrum. 
B)  involve little input from the brain. 
C)  require the coordinated activity of several regions of the brain. 
D)  are controlled at the level of the spinal cord. 
E)  do not require input from the cerebellum.

Question 10

Which type of synapse dominates the nervous system?

Accepted Answer

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

Question 11

The most rapid action potentials are conducted on

Accepted Answer

A)  thick, myelinated axons. 
B)  thick, unmyelinated axons. 
C)  thin, myelinated axons. 
D)  thin, unmyelinated axons. 
E)  dendrites. 
A)  thick, myelinated axons. 
B)  thick, unmyelinated axons. 
C)  thin, myelinated axons. 
D)  thin, unmyelinated axons. 
E)  dendrites.

Question 12

Which part of the following develops from the forebrain?

Accepted Answer

A)  central canal 
B)  cerebellum 
C)  pons 
D)  thalamus 
E)  midbrain 
A)  central canal 
B)  cerebellum 
C)  pons 
D)  thalamus 
E)  midbrain

Question 13

Tetrodotoxin is a toxin that blocks the sodium channels from opening. What effect would this have on the function of neurons?

Accepted Answer

A)  Neurons would depolarize more rapidly. 
B)  Action potentials would lack a repolarization phase. 
C)  The refractory period would be shorter than normal. 
D)  The neurons would not be able to propagate action potentials. 
E)  none of the above 
A)  Neurons would depolarize more rapidly. 
B)  Action potentials would lack a repolarization phase. 
C)  The refractory period would be shorter than normal. 
D)  The neurons would not be able to propagate action potentials. 
E)  none of the above

Question 14

The _________________________ nerve innervates the diaphragm.

Accepted Answer

The answer of The _________________________ nerve innervates the diaphragm....

Question 15

The following are the main steps in the generation of an action potential. 1. Sodium channels are inactivated.
2) Potassium channels open and potassium moves out of the cell, initiating repolarization.
3) Sodium channels regain their normal properties.
4) A graded depolarization brings an area of an excitable membrane to threshold.
5) A temporary hyperpolarization occurs.
6) Sodium channel activation occurs.
7) Sodium ions enter the cell and depolarization occurs.
The proper sequence of these events is

Accepted Answer

A)  4, 6, 7, 3, 2, 5, 1 
B)  4, 6, 7, 1, 2, 3, 5 
C)  5, 7, 4, 1, 2, 3, 5 
D)  2, 4, 6, 7, 1, 3, 5 
E)  4, 2, 5, 6, 7, 3, 1 
A)  4, 6, 7, 3, 2, 5, 1 
B)  4, 6, 7, 1, 2, 3, 5 
C)  5, 7, 4, 1, 2, 3, 5 
D)  2, 4, 6, 7, 1, 3, 5 
E)  4, 2, 5, 6, 7, 3, 1

Control of the viscera is the job of the

The processing of the same information at the same time by several neuronal pools is called

The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory and motor information is the

In multiple sclerosis, there is progressive and intermittent damage to the myelin sheath of peripheral nerves. This results in poor motor control of the affected area. Why does destruction of the myelin sheath affect motor control?

The nerve that controls the biceps brachii muscle is the

If the dorsal root of a spinal nerve is severed,

The part of the brain that functions to control skeletal muscles is the

The expected response to the triceps-jerk reflex is

Complex motor activities such as riding a bicycle or eating

Which type of synapse dominates the nervous system?

The most rapid action potentials are conducted on

Which part of the following develops from the forebrain?

Tetrodotoxin is a toxin that blocks the sodium channels from opening. What effect would this have on the function of neurons?

The _________________________ nerve innervates the diaphragm.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphoid System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

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The Reproductive System

Development and Inheritance

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Exam 8: The Nervous System

Control of the viscera is the job of the

The processing of the same information at the same time by several neuronal pools is called

The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory and motor information is the

In multiple sclerosis, there is progressive and intermittent damage to the myelin sheath of peripheral nerves. This results in poor motor control of the affected area. Why does destruction of the myelin sheath affect motor control?

The nerve that controls the biceps brachii muscle is the

If the dorsal root of a spinal nerve is severed,

The part of the brain that functions to control skeletal muscles is the

The expected response to the triceps-jerk reflex is

Complex motor activities such as riding a bicycle or eating

Which type of synapse dominates the nervous system?

The most rapid action potentials are conducted on

Which part of the following develops from the forebrain?

Tetrodotoxin is a toxin that blocks the sodium channels from opening. What effect would this have on the function of neurons?

The _________________________ nerve innervates the diaphragm.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphoid System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

The Reproductive System

Development and Inheritance

Filters