Question 1

Given the symptoms of Huntington's disease,which structure in the brain is being damaged by the abnormal protein?

Accepted Answer

A) cerebellum 
B) cerebrum 
C) hypothalamus 
D) brainstem 
A) cerebellum 
B) cerebrum 
C) hypothalamus 
D) brainstem

Question 2

Scientists hypothesize that the abnormal protein stops vesicles from moving through the cytoskeleton.Predict the effect of this protein on the nervous system.

Accepted Answer

A) Neurotransmitters cannot be released. 
B) Receptor potentials cannot occur. 
C) Cerebrospinal fluid leaks out of the brain. 
D) Action potentials become smaller. 
A) Neurotransmitters cannot be released. 
B) Receptor potentials cannot occur. 
C) Cerebrospinal fluid leaks out of the brain. 
D) Action potentials become smaller.

Question 3

In contrast to action potentials,receptor potentials ________.

Accepted Answer

A) are all-or-none phenomena 
B) vary in intensity 
C) do not require a stimulus 
D) do not rely on changes in the membrane potential 
A) are all-or-none phenomena 
B) vary in intensity 
C) do not require a stimulus 
D) do not rely on changes in the membrane potential

Question 4

Which of the following is an example of sensory adaptation of receptors?

Accepted Answer

A) going into deep sleep 
B) distinguishing between different colors 
C) ignoring the shoes on your feet 
D) detecting sound and light simultaneously 
A) going into deep sleep 
B) distinguishing between different colors 
C) ignoring the shoes on your feet 
D) detecting sound and light simultaneously

Question 5

What part of the nervous system cushions the CNS and helps supply it with nutrients and hormones,and carries away wastes?

Accepted Answer

A) cerebrospinal fluid 
B) spinal cord 
C) interneurons 
D) the bones of the skull 
A) cerebrospinal fluid 
B) spinal cord 
C) interneurons 
D) the bones of the skull

Question 6

Which one of the following correctly pairs the structure with its major function(s)?

Accepted Answer

A) hypothalamus-regulates body temperature,blood pressure,and hunger 
B) cerebellum-regulates memory,learning,and speech 
C) brainstem-is the input center for sensory data going to the cerebrum 
D) thalamus-coordinates balance 
A) hypothalamus-regulates body temperature,blood pressure,and hunger 
B) cerebellum-regulates memory,learning,and speech 
C) brainstem-is the input center for sensory data going to the cerebrum 
D) thalamus-coordinates balance

Question 7

The cerebral cortex is highly folded.Why might this be an advantage for the functions of the cerebrum?

Accepted Answer

A) The increased surface area increases the area for higher-level thinking. 
B) The increased surface area permits greater contact between the cerebrum and the cerebellum. 
C) The folds form grooves that let the bones of the skull reach deeply down between brain regions. 
D) The folds increase the areas where sensory receptors can reach the brain's surface. 
A) The increased surface area increases the area for higher-level thinking. 
B) The increased surface area permits greater contact between the cerebrum and the cerebellum. 
C) The folds form grooves that let the bones of the skull reach deeply down between brain regions. 
D) The folds increase the areas where sensory receptors can reach the brain's surface.

Question 8

Which of the following effects could result from activation of the sympathetic nervous system?

Accepted Answer

A) decreased heart rate 
B) stimulated digestive organs 
C) secretion of epinephrine 
D) narrowing of the bronchi 
A) decreased heart rate 
B) stimulated digestive organs 
C) secretion of epinephrine 
D) narrowing of the bronchi

Question 9

What evolutionary adaptation allows elephants to migrate,meet,and mate over great distances?

Accepted Answer

A) echolocation 
B) electroreception 
C) magnetoreception 
D) seismic detection 
A) echolocation 
B) electroreception 
C) magnetoreception 
D) seismic detection

Question 10

Examine the figure below.Once an action potential is triggered,________.

Accepted Answer

A) the interior of the cell becomes positively charged relative to the outside 
B) the interior of the cell becomes negatively charged relative to the outside 
C) all ion channels close 
D) the cell soon reaches threshold 
A) the interior of the cell becomes positively charged relative to the outside 
B) the interior of the cell becomes negatively charged relative to the outside 
C) all ion channels close 
D) the cell soon reaches threshold

Question 11

Which one of the following is used to combat osteoporosis?

Accepted Answer

A) calcium and vitamin therapy 
B) anti-inflammatory medicines 
C) opiates 
D) splints or casts 
A) calcium and vitamin therapy 
B) anti-inflammatory medicines 
C) opiates 
D) splints or casts

Question 12

Eyes can become bloodshot when irritants in the eye trigger an increased blood flow to the connective tissue covering the eye.These swollen blood vessels are located on the ________.

Accepted Answer

A) cornea 
B) sclera 
C) iris 
D) lens 
A) cornea 
B) sclera 
C) iris 
D) lens

Question 13

Arthritis is a common result of aging,affecting persons' ability to ________.

Accepted Answer

A) catch their breath after exercise 
B) move their joints 
C) heal broken bones 
D) produce red blood cells 
A) catch their breath after exercise 
B) move their joints 
C) heal broken bones 
D) produce red blood cells

Question 14

The figure below shows the structure of an arm bone.Which part of a bone contains stored fat?

Accepted Answer

A) red bone marrow 
B) cartilage 
C) the ends 
D) yellow bone marrow 
A) red bone marrow 
B) cartilage 
C) the ends 
D) yellow bone marrow

Question 15

Standing out in center field,the baseball player watches the hitter's bat strike the ball and then,slightly later,hears the sound of the impact.What types of sensory receptors did the player just use?

Accepted Answer

A) thermoreceptors and chemoreceptors 
B) photoreceptors and mechanoreceptors 
C) chemoreceptors and pain receptors 
D) pain receptors and thermoreceptors 
A) thermoreceptors and chemoreceptors 
B) photoreceptors and mechanoreceptors 
C) chemoreceptors and pain receptors 
D) pain receptors and thermoreceptors

Question 16

Which of the following was supported by the terrible accident that happened to Phineas Gage?

Accepted Answer

A) The cerebrum plays a major role in the sense of balance. 
B) You cannot live without your hypothalamus. 
C) The frontal lobes are associated with personality. 
D) The pons plays a crucial role in hearing. 
A) The cerebrum plays a major role in the sense of balance. 
B) You cannot live without your hypothalamus. 
C) The frontal lobes are associated with personality. 
D) The pons plays a crucial role in hearing.

Question 17

Which of the following statements is TRUE?

Accepted Answer

A) Heroin binds to endorphin receptors. 
B) Caffeine increases the effects of neurotransmitters that normally suppress nerve signals. 
C) Alcohol is a stimulant. 
D) Nicotine is a depressant. 
A) Heroin binds to endorphin receptors. 
B) Caffeine increases the effects of neurotransmitters that normally suppress nerve signals. 
C) Alcohol is a stimulant. 
D) Nicotine is a depressant.

Question 18

A person who has blurred vision caused by a misshapen lens or cornea has ________.

Accepted Answer

A) farsightedness 
B) nearsightedness 
C) astigmatism 
D) cataracts 
A) farsightedness 
B) nearsightedness 
C) astigmatism 
D) cataracts

Question 19

The figure shows the human eye.Which part of the eye gives the eye its color?

Accepted Answer

A) sclera 
B) iris 
C) pupil 
D) retina 
A) sclera 
B) iris 
C) pupil 
D) retina

Question 20

The cells that carry electric signals from one part of the body to another in the nervous system are ________.

Accepted Answer

A) dendrites 
B) neurons 
C) effectors 
D) synapses 
A) dendrites 
B) neurons 
C) effectors 
D) synapses

Exam 27: Nervous,Sensory,and Locomotor Systems

Given the symptoms of Huntington's disease,which structure in the brain is being damaged by the abnormal protein?

Scientists hypothesize that the abnormal protein stops vesicles from moving through the cytoskeleton.Predict the effect of this protein on the nervous system.

In contrast to action potentials,receptor potentials ________.

Which of the following is an example of sensory adaptation of receptors?

What part of the nervous system cushions the CNS and helps supply it with nutrients and hormones,and carries away wastes?

Which one of the following correctly pairs the structure with its major function(s)?

The cerebral cortex is highly folded.Why might this be an advantage for the functions of the cerebrum?

Which of the following effects could result from activation of the sympathetic nervous system?

What evolutionary adaptation allows elephants to migrate,meet,and mate over great distances?

Examine the figure below.Once an action potential is triggered,________.

Which one of the following is used to combat osteoporosis?

Eyes can become bloodshot when irritants in the eye trigger an increased blood flow to the connective tissue covering the eye.These swollen blood vessels are located on the ________.

Arthritis is a common result of aging,affecting persons' ability to ________.

The figure below shows the structure of an arm bone.Which part of a bone contains stored fat?

Standing out in center field,the baseball player watches the hitter's bat strike the ball and then,slightly later,hears the sound of the impact.What types of sensory receptors did the player just use?

Which of the following was supported by the terrible accident that happened to Phineas Gage?

Which of the following statements is TRUE?

A person who has blurred vision caused by a misshapen lens or cornea has ________.

The figure shows the human eye.Which part of the eye gives the eye its color?

The cells that carry electric signals from one part of the body to another in the nervous system are ________.

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Bodys Defenses

Hormones

Reproduction and Development

The Life of a Flowering Plant

The Working Plant

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