Question 1

Selecting the Exception Four of the five answers listed below are used in descriptions of the nerve sheath. Select the exception.

Accepted Answer

A)  Schwann cell 
B)  threshold 
C)  myelin sheath 
D)  saltatory conduction 
E)  node 
A)  Schwann cell 
B)  threshold 
C)  myelin sheath 
D)  saltatory conduction 
E)  node B

Question 2

The word that best describes the interaction of sympathetic and parasympathetic systems is

Accepted Answer

A)  antagonistic. 
B)  cooperative. 
C)  overriding. 
D)  subversive. 
E)  ineffective. 
A)  antagonistic. 
B)  cooperative. 
C)  overriding. 
D)  subversive. 
E)  ineffective. A

Question 3

Drug abuse usually involves those drugs which

Accepted Answer

A)  are psychoactive. 
B)  act on the central nervous system. 
C)  bind to neuron receptors. 
D)  change the chemical messages that neurons send and receive. 
E)  all of these 
A)  are psychoactive. 
B)  act on the central nervous system. 
C)  bind to neuron receptors. 
D)  change the chemical messages that neurons send and receive. 
E)  all of these E

Question 4

The human brain contains at least ____ neurons.

Accepted Answer

A)  100 billion 
B)  100 million 
C)  500 million 
D)  100 thousand 
E)  50 million 
A)  100 billion 
B)  100 million 
C)  500 million 
D)  100 thousand 
E)  50 million

Question 5

How long does the spike of an action potential last?

Accepted Answer

A)  one second 
B)  one millisecond 
C)  one microsecond 
D)  one half second 
E)  one nanosecond 
A)  one second 
B)  one millisecond 
C)  one microsecond 
D)  one half second 
E)  one nanosecond

Question 6

The ascending and descending nerve tracts

Accepted Answer

A)  are found in the gray matter of the spinal cord. 
B)  are found in the white matter of the spinal cord. 
C)  are covered with myelin sheaths. 
D)  are both sensory and motor. 
E)  all of these except "are found in the gray matter of the spinal cord" 
A)  are found in the gray matter of the spinal cord. 
B)  are found in the white matter of the spinal cord. 
C)  are covered with myelin sheaths. 
D)  are both sensory and motor. 
E)  all of these except "are found in the gray matter of the spinal cord"

Question 7

Chemical signaling molecules that diffuse across a chemical synapse are called

Accepted Answer

A)  neurotransmitters. 
B)  enzymes. 
C)  neurostimulators. 
D)  neuron releasing factors. 
E)  ion carriers. 
A)  neurotransmitters. 
B)  enzymes. 
C)  neurostimulators. 
D)  neuron releasing factors. 
E)  ion carriers.

Question 8

Which lobe of the cerebrum is a processing center for taste?

Accepted Answer

A)  parietal 
B)  occipital 
C)  temporal 
D)  frontal 
E)  ganglional 
A)  parietal 
B)  occipital 
C)  temporal 
D)  frontal 
E)  ganglional

Question 9

The simplest nerve pathway is

Accepted Answer

A)  located in the midbrain. 
B)  the reflex pathway. 
C)  found in the lower part of the brain. 
D)  found in the autonomic nervous system. 
E)  in the flow of information from a sense receptor to the brain. 
A)  located in the midbrain. 
B)  the reflex pathway. 
C)  found in the lower part of the brain. 
D)  found in the autonomic nervous system. 
E)  in the flow of information from a sense receptor to the brain.

Question 10

The major relay center of the brain is the

Accepted Answer

A)  cerebrum. 
B)  olfactory area. 
C)  cerebellum. 
D)  thalamus. 
E)  hypothalamus. 
A)  cerebrum. 
B)  olfactory area. 
C)  cerebellum. 
D)  thalamus. 
E)  hypothalamus.

Question 11

Match between columns
                        Premises: Sympathetic nerves from this region innervate the heart.
Sympathetic nerves from this region pass through the celiac ganglion.
Sympathetic nerves from this region innervate the bladder, uterus, and genitals.
Parasympathetic nerves from this region innervate the rectum.
Sympathetic nerves from this region innervate the kidney.

Accepted Answer

The Answer of sacral and thoracic. and lumbar and thoracic is...

Question 12

Sensory signals are also referred to as

Accepted Answer

A)  efferent. 
B)  motor. 
C)  reverberating. 
D)  saltatory. 
E)  afferent. 
A)  efferent. 
B)  motor. 
C)  reverberating. 
D)  saltatory. 
E)  afferent.

Question 13

High levels of which chemical in the sleep centers of the brain induce drowsiness and sleep?

Accepted Answer

A)  norepinephrine 
B)  serotonin 
C)  adrenalin 
D)  encephalin 
E)  cyclic AMP 
A)  norepinephrine 
B)  serotonin 
C)  adrenalin 
D)  encephalin 
E)  cyclic AMP

Question 14

An excitatory postsynaptic potential

Accepted Answer

A)  is only one of several types of graded potential. 
B)  has a hyperpolarizing effect. 
C)  will drive the membrane away from its threshold. 
D)  is summed with an inhibitory postsynaptic potential at the input zone of a neuron in a process known as synaptic integration. 
E)  help keep the membrane at resting membrane potential. 
A)  is only one of several types of graded potential. 
B)  has a hyperpolarizing effect. 
C)  will drive the membrane away from its threshold. 
D)  is summed with an inhibitory postsynaptic potential at the input zone of a neuron in a process known as synaptic integration. 
E)  help keep the membrane at resting membrane potential.

Question 15

The spaces that separate adjacent Schwann cells are called

Accepted Answer

A)  neuroglia. 
B)  myelin sheaths. 
C)  nodes. 
D)  dendrites. 
E)  synapses. 
A)  neuroglia. 
B)  myelin sheaths. 
C)  nodes. 
D)  dendrites. 
E)  synapses.

Question 16

"Fact recall" is termed

Accepted Answer

A)  intuitive memory. 
B)  declarative memory. 
C)  deductive memory. 
D)  inductive memory. 
E)  skill memory. 
A)  intuitive memory. 
B)  declarative memory. 
C)  deductive memory. 
D)  inductive memory. 
E)  skill memory.

Question 17

The hindbrain includes the

Accepted Answer

A)  thalamus. 
B)  pineal gland. 
C)  cerebellum. 
D)  medulla. 
E)  cerebellum and medulla. 
A)  thalamus. 
B)  pineal gland. 
C)  cerebellum. 
D)  medulla. 
E)  cerebellum and medulla.

Question 18

When it comes to memory, information is processed based on

Accepted Answer

A)  relevance. 
B)  content. 
C)  route of input. 
D)  size of input. 
E)  how much memory is already stored. 
A)  relevance. 
B)  content. 
C)  route of input. 
D)  size of input. 
E)  how much memory is already stored.

Question 19

Nicotine mimics ____ in its effects on the nervous system.

Accepted Answer

A)  adrenalin 
B)  acetylcholine 
C)  dopamine 
D)  endorphins 
E)  analgesics 
A)  adrenalin 
B)  acetylcholine 
C)  dopamine 
D)  endorphins 
E)  analgesics

Question 20

The pathway for a simple reaction to a stimulus is

Accepted Answer

A)  sense organ, sensory neuron, association neuron, motor neuron, effector. 
B)  sense organ, sensory neuron, motor neuron, association neuron, effector. 
C)  sense organ, motor neuron, sensory neuron, association neuron, effector. 
D)  sense organ, motor neuron, association neuron, sensory neuron, effector. 
A)  sense organ, sensory neuron, association neuron, motor neuron, effector. 
B)  sense organ, sensory neuron, motor neuron, association neuron, effector. 
C)  sense organ, motor neuron, sensory neuron, association neuron, effector. 
D)  sense organ, motor neuron, association neuron, sensory neuron, effector.

Exam 13: The Nervous System

Selecting the Exception Four of the five answers listed below are used in descriptions of the nerve sheath. Select the exception.

The word that best describes the interaction of sympathetic and parasympathetic systems is

Drug abuse usually involves those drugs which

The human brain contains at least ____ neurons.

How long does the spike of an action potential last?

The ascending and descending nerve tracts

Chemical signaling molecules that diffuse across a chemical synapse are called

Which lobe of the cerebrum is a processing center for taste?

The simplest nerve pathway is

The major relay center of the brain is the

Sensory signals are also referred to as

High levels of which chemical in the sleep centers of the brain induce drowsiness and sleep?

An excitatory postsynaptic potential

The spaces that separate adjacent Schwann cells are called

"Fact recall" is termed

The hindbrain includes the

When it comes to memory, information is processed based on

Nicotine mimics ____ in its effects on the nervous system.

The pathway for a simple reaction to a stimulus is

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

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Introduction to Genetics

Chromosomes and Human Genetics

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Genes and Disease: Cancer

Principles of Evolution

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