Question 1

Action potentials are

Accepted Answer

A) faster in neurons than in muscle cells. 
B) faster in muscle cells than in neurons. 
C) essentially the same in neurons and muscle cells. 
D) completely different in neurons and muscle cells. 
E) none of these. 
A) faster in neurons than in muscle cells. 
B) faster in muscle cells than in neurons. 
C) essentially the same in neurons and muscle cells. 
D) completely different in neurons and muscle cells. 
E) none of these. C

Question 2

Drug addiction

Accepted Answer

A) is a form of chemical dependence. 
B) may result from habituation and increased tolerance. 
C) may result in deterioration of personal and professional relationships. 
D) may result in risk taking to obtain or use the drug 
E) includes all of these 
A) is a form of chemical dependence. 
B) may result from habituation and increased tolerance. 
C) may result in deterioration of personal and professional relationships. 
D) may result in risk taking to obtain or use the drug 
E) includes all of these E

Question 3

Nerve impulses coming into the spinal cord enter via

Accepted Answer

A) intervertebral disks. 
B) neuroglia. 
C) the dorsal roots. 
D) Broca's area. 
E) ventral roots. 
A) intervertebral disks. 
B) neuroglia. 
C) the dorsal roots. 
D) Broca's area. 
E) ventral roots. C

Question 4

An action potential is brought about by

Accepted Answer

A) a sudden membrane impermeability. 
B) the movement of negatively charged proteins through the neuronal membrane. 
C) the movement of lipoproteins to the outer side of the membrane. 
D) a local change in membrane permeability caused by a threshold level stimulus. 
E) all of these. 
A) a sudden membrane impermeability. 
B) the movement of negatively charged proteins through the neuronal membrane. 
C) the movement of lipoproteins to the outer side of the membrane. 
D) a local change in membrane permeability caused by a threshold level stimulus. 
E) all of these.

Question 5

The phrase "all or nothing" used in conjunction with discussion about an action potential means that

Accepted Answer

A) a resting membrane potential has been received by the cell. 
B) the change in membrane potential always spikes with the same intensity. 
C) the membrane either achieves total equilibrium or remains as far from equilibrium as possible. 
D) propagation along the neuron jumps from node to node. 
E) none of these occur. 
A) a resting membrane potential has been received by the cell. 
B) the change in membrane potential always spikes with the same intensity. 
C) the membrane either achieves total equilibrium or remains as far from equilibrium as possible. 
D) propagation along the neuron jumps from node to node. 
E) none of these occur.

Question 6

Use the figure above to answer questions 
  
-The point at which this neuron will be able to generate another action potential is indicated by

Accepted Answer

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

Question 7

The input zone of a motor neuron is the

Accepted Answer

A) axon. 
B) axonal endings. 
C) cell body. 
D) dendrites. 
E) cell body and dendrites. 
A) axon. 
B) axonal endings. 
C) cell body. 
D) dendrites. 
E) cell body and dendrites.

Question 8

Four of the five drugs listed below are stimulants.Select the exception.

Accepted Answer

A) heroin 
B) caffeine 
C) nicotine 
D) cocaine 
E) amphetamine 
A) heroin 
B) caffeine 
C) nicotine 
D) cocaine 
E) amphetamine

Question 9

Which part of the mammalian brain is disproportionately smaller than the corresponding part of a fish brain?

Accepted Answer

A) medulla oblongata 
B) thalamus 
C) pons 
D) midbrain 
E) cerebrum 
A) medulla oblongata 
B) thalamus 
C) pons 
D) midbrain 
E) cerebrum

Question 10

Once the body becomes adapted to drugs, it takes even greater exposure to that drug to achieve the same level of reaction.This condition is known as

Accepted Answer

A) synergism. 
B) habituation. 
C) psychological dependence. 
D) tolerance. 
E) concealment. 
A) synergism. 
B) habituation. 
C) psychological dependence. 
D) tolerance. 
E) concealment.

Question 11

Which of these statements is false about Ecstasy's active ingredient?

Accepted Answer

A) It is a type of amphetamine. 
B) It causes a surge of serotonin release from brain neurons. 
C) It disrupts homeostatic pathways that control temperature and blood pressure. 
D) It is a hallucinogen. 
E) It causes target cells to be overstimulated. 
A) It is a type of amphetamine. 
B) It causes a surge of serotonin release from brain neurons. 
C) It disrupts homeostatic pathways that control temperature and blood pressure. 
D) It is a hallucinogen. 
E) It causes target cells to be overstimulated.

Question 12

The protective covering of the brain is (are) the

Accepted Answer

A) ventricles. 
B) meninges. 
C) tectum. 
D) olfactory and optic bulbs. 
E) pineal gland. 
A) ventricles. 
B) meninges. 
C) tectum. 
D) olfactory and optic bulbs. 
E) pineal gland.

Question 13

All vertebrates have

Accepted Answer

A) two nerve cords. 
B) a nerve cord in the front of the body. 
C) a nerve cord on the side of the body. 
D) a hollow dorsal nerve cord. 
E) a tubular ventral nerve cord. 
A) two nerve cords. 
B) a nerve cord in the front of the body. 
C) a nerve cord on the side of the body. 
D) a hollow dorsal nerve cord. 
E) a tubular ventral nerve cord.

Question 14

Signals from the parasympathetic nervous system cause which of the following?

Accepted Answer

A) increase in blood pressure 
B) increase in pulse rate 
C) increase in digestive activities 
D) increase in blood sugar level 
E) increase in metabolic rate 
A) increase in blood pressure 
B) increase in pulse rate 
C) increase in digestive activities 
D) increase in blood sugar level 
E) increase in metabolic rate

Question 15

The midbrain includes the

Accepted Answer

A) thalamus. 
B) fissure of Rolando. 
C) tectum. 
D) medulla oblongata. 
E) olfactory lobes. 
A) thalamus. 
B) fissure of Rolando. 
C) tectum. 
D) medulla oblongata. 
E) olfactory lobes.

Question 16

Which of the following drugs is a depressant?

Accepted Answer

A) heroine 
B) ketamine 
C) PCP 
D) ethyl alcohol 
E) oxycodone 
A) heroine 
B) ketamine 
C) PCP 
D) ethyl alcohol 
E) oxycodone

Question 17

When an impulse passes from one neuron to the next, it

Accepted Answer

A) passes directly from dendrite to axon. 
B) passes from axon to cell body to dendrite. 
C) bypasses the cell bodies of both. 
D) passes from the output zone of one to the input zone of the other. 
E) undergoes repolarization. 
A) passes directly from dendrite to axon. 
B) passes from axon to cell body to dendrite. 
C) bypasses the cell bodies of both. 
D) passes from the output zone of one to the input zone of the other. 
E) undergoes repolarization.

Question 18

The part of the nervous system that is composed of two parts that are antagonistic to each other is

Accepted Answer

A) the autonomic nervous system. 
B) the spinal cord. 
C) the peripheral nervous system. 
D) the central nervous system. 
E) none of these. 
A) the autonomic nervous system. 
B) the spinal cord. 
C) the peripheral nervous system. 
D) the central nervous system. 
E) none of these.

Question 19

Which of the following statements is false?

Accepted Answer

A) The information that travels along the neural membrane is little more than a transient change in the membrane potential. 
B) A neuron is never really at rest but must expend energy to keep the membrane potential constant even when no impulse is being transmitted. 
C) During the short time an action potential occurs, the cytoplasmic side of the membrane becomes positive with respect to the outside. 
D) Only nerve cells can exhibit depolarization events. 
E) Action potentials are not directly transferred from neuron to neuron. 
A) The information that travels along the neural membrane is little more than a transient change in the membrane potential. 
B) A neuron is never really at rest but must expend energy to keep the membrane potential constant even when no impulse is being transmitted. 
C) During the short time an action potential occurs, the cytoplasmic side of the membrane becomes positive with respect to the outside. 
D) Only nerve cells can exhibit depolarization events. 
E) Action potentials are not directly transferred from neuron to neuron.

Question 20

Pain relievers such as endorphins and enkephalins are

Accepted Answer

A) depressants. 
B) stimulants. 
C) analgesics. 
D) hallucinogens. 
E) antipsychotics. 
A) depressants. 
B) stimulants. 
C) analgesics. 
D) hallucinogens. 
E) antipsychotics.

Exam 33: Neural Control

Action potentials are

Drug addiction

Nerve impulses coming into the spinal cord enter via

An action potential is brought about by

The phrase "all or nothing" used in conjunction with discussion about an action potential means that

Use the figure above to answer questions -The point at which this neuron will be able to generate another action potential is indicated by

The input zone of a motor neuron is the

Four of the five drugs listed below are stimulants.Select the exception.

Which part of the mammalian brain is disproportionately smaller than the corresponding part of a fish brain?

Once the body becomes adapted to drugs, it takes even greater exposure to that drug to achieve the same level of reaction.This condition is known as

Which of these statements is false about Ecstasy's active ingredient?

The protective covering of the brain is (are) the

All vertebrates have

Signals from the parasympathetic nervous system cause which of the following?

The midbrain includes the

Which of the following drugs is a depressant?

When an impulse passes from one neuron to the next, it

The part of the nervous system that is composed of two parts that are antagonistic to each other is

Which of the following statements is false?

Pain relievers such as endorphins and enkephalins are

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters