Question 1

What provides a connection between two neurons?

Accepted Answer

A)  a synapse 
B)  a cell body 
C)  an axon 
D)  dendrites 
A)  a synapse 
B)  a cell body 
C)  an axon 
D)  dendrites A

Question 2

-Refer to the diagram to answer the following question: A blow to which part of the head could lead to loss of vision?

Accepted Answer

A)  front 
B)  top 
C)  back 
D)  side 
A)  front 
B)  top 
C)  back 
D)  side C

Question 3

What does the corpus callosum connect?

Accepted Answer

A)  cerebellum and spinal cord 
B)  right and left cerebral hemispheres 
C)  pituitary and the hypothalamus 
D)  gray and white matter of the spinal cord 
A)  cerebellum and spinal cord 
B)  right and left cerebral hemispheres 
C)  pituitary and the hypothalamus 
D)  gray and white matter of the spinal cord B

Question 4

Ritalin, like cocaine and amphetamines, acts by increasing the concentration of which neurotransmitter in neuronal synapses?

Accepted Answer

A)  dopamine 
B)  serotonin 
C)  acetylcholine 
D)  gamma-aminobutyric acid (GAB
A)  
A)  dopamine 
B)  serotonin 
C)  acetylcholine 
D)  gamma-aminobutyric acid (GAB
A)

Question 5

What part of the neuron houses the nucleus?

Accepted Answer

A)  axon 
B)  cell body 
C)  dendrite 
D)  nerve 
A)  axon 
B)  cell body 
C)  dendrite 
D)  nerve

Question 6

Why is it important that you take care of your neurons?

Accepted Answer

A)  They are able to divide rapidly and can be turned into cancer cells. 
B)  They only undergo mitosis after the brain has obtained enough sleep. 
C)  They are unable to divide by mitosis. 
D)  They are very susceptible to mutations of their DNA. 
A)  They are able to divide rapidly and can be turned into cancer cells. 
B)  They only undergo mitosis after the brain has obtained enough sleep. 
C)  They are unable to divide by mitosis. 
D)  They are very susceptible to mutations of their DNA.

Question 7

How would the speed at which the electrochemical impulse travels down the axon be affected by decreased myelination of an axon?

Accepted Answer

A)  It would decrease. 
B)  It would increase. 
C)  It would maximize. 
D)  It would have no effect. 
A)  It would decrease. 
B)  It would increase. 
C)  It would maximize. 
D)  It would have no effect.

Question 8

True or false: Electrical signals travel faster down unmyelinated axons than myelinated axons.

Accepted Answer

A) True 
 B)False

Question 9

Which drug, when taken by an adult, will produce similar symptoms as the symptoms of a child with ADD?

Accepted Answer

A)  alcohol 
B)  ecstasy 
C)  marijuana 
D)  nicotine 
A)  alcohol 
B)  ecstasy 
C)  marijuana 
D)  nicotine

Question 10

-Refer to the figure for the following question: Drug addiction is characterized by tolerance, in which the user must ingest more of the drug to obtain the same effect. Cellularly, tolerance can be explained by the fact that prolonged use of a drug such as cocaine leads to ________ in the number of receptor proteins present in the postsynaptic neuron.

Accepted Answer

A)  an increase 
B)  a decrease 
C)  no change 
D)  a regulation 
A)  an increase 
B)  a decrease 
C)  no change 
D)  a regulation

Question 11

What part of the brain is highly developed in animals that have finely tuned balance and complex coordination?

Accepted Answer

A)  cerebellum 
B)  medulla 
C)  thalamus 
D)  temporal lobe 
A)  cerebellum 
B)  medulla 
C)  thalamus 
D)  temporal lobe

Question 12

Which structures would be classified as effectors?

Accepted Answer

A)  sensory neurons 
B)  interneurons 
C)  body tissues 
D)  neurotransmitters 
A)  sensory neurons 
B)  interneurons 
C)  body tissues 
D)  neurotransmitters

Question 13

What is the impulse that travels down a neuron's axon?

Accepted Answer

A)  shock signal 
B)  action potential 
C)  currenter 
D)  resistor 
A)  shock signal 
B)  action potential 
C)  currenter 
D)  resistor

Question 14

Arrange the following neurons into the correct sequence for information flow during the withdrawal reflex following touching a hot burner on a stove.

Accepted Answer

A)  interneuron, motor neuron, sensory neuron 
B)  motor neuron, sensory neuron, interneuron 
C)  sensory neuron, interneuron, motor neuron 
D)  motor neuron, interneuron, sensory neuron 
A)  interneuron, motor neuron, sensory neuron 
B)  motor neuron, sensory neuron, interneuron 
C)  sensory neuron, interneuron, motor neuron 
D)  motor neuron, interneuron, sensory neuron

Question 15

Damage to which of the following brain structures is most likely to be fatal?

Accepted Answer

A)  caudate nuclei 
B)  cerebellum 
C)  brain stem 
D)  cerebrum 
A)  caudate nuclei 
B)  cerebellum 
C)  brain stem 
D)  cerebrum

Question 16

The expression "knee-jerk reaction" refers to someone doing something automatically without thinking. What does this expression mean in biological terms?

Accepted Answer

A)  In the nervous system, this expression implies the involvement of higher brain regions before executing a spinal reflex. 
B)  In the nervous system, this expression implies the lack of brain input when executing a spinal reflex. 
C)  This expression implies that the knee-jerk reaction will be shortened in duration following input from higher brain regions. 
D)  This expression implies that only children exhibit this type of unthinking behavior. 
A)  In the nervous system, this expression implies the involvement of higher brain regions before executing a spinal reflex. 
B)  In the nervous system, this expression implies the lack of brain input when executing a spinal reflex. 
C)  This expression implies that the knee-jerk reaction will be shortened in duration following input from higher brain regions. 
D)  This expression implies that only children exhibit this type of unthinking behavior.

Question 17

What releases neurotransmitters?

Accepted Answer

A)  terminal boutons 
B)  the cell body 
C)  dendrites 
D)  myelin sheaths 
A)  terminal boutons 
B)  the cell body 
C)  dendrites 
D)  myelin sheaths

Question 18

Huntington's disease is a fatal disorder characterized by abnormal muscle movements called chorea. Based on your knowledge of the nervous system, which brain region would be disrupted by Huntington's disease?

Accepted Answer

A)  thalamus 
B)  midbrain 
C)  caudate nucleus 
D)  corpus callosum 
A)  thalamus 
B)  midbrain 
C)  caudate nucleus 
D)  corpus callosum

Question 19

A person you know has been in an automobile accident. After the accident, you notice a dramatic personality change. Before the accident, he was industrious and well liked; after the accident, he is profane, impetuous, and incapable of working toward a goal. Which portion of the brain was most likely damaged?

Accepted Answer

A)  occipital lobe 
B)  temporal lobe 
C)  frontal lobe 
D)  parietal lobe 
A)  occipital lobe 
B)  temporal lobe 
C)  frontal lobe 
D)  parietal lobe

Question 20

Which structure would allow you to move your hand away from a hot burner after touching it?

Accepted Answer

A)  sensory neuron 
B)  interneuron 
C)  motor neuron 
D)  glial cell 
A)  sensory neuron 
B)  interneuron 
C)  motor neuron 
D)  glial cell

Exam 23: Study Drugs: Brain Boost or Brain Drain Brain Structure and Function

What provides a connection between two neurons?

-Refer to the diagram to answer the following question: A blow to which part of the head could lead to loss of vision?

What does the corpus callosum connect?

Ritalin, like cocaine and amphetamines, acts by increasing the concentration of which neurotransmitter in neuronal synapses?

What part of the neuron houses the nucleus?

Why is it important that you take care of your neurons?

How would the speed at which the electrochemical impulse travels down the axon be affected by decreased myelination of an axon?

True or false: Electrical signals travel faster down unmyelinated axons than myelinated axons.

Which drug, when taken by an adult, will produce similar symptoms as the symptoms of a child with ADD?

What part of the brain is highly developed in animals that have finely tuned balance and complex coordination?

Which structures would be classified as effectors?

What is the impulse that travels down a neuron's axon?

Arrange the following neurons into the correct sequence for information flow during the withdrawal reflex following touching a hot burner on a stove.

Damage to which of the following brain structures is most likely to be fatal?

The expression "knee-jerk reaction" refers to someone doing something automatically without thinking. What does this expression mean in biological terms?

What releases neurotransmitters?

Huntington's disease is a fatal disorder characterized by abnormal muscle movements called chorea. Based on your knowledge of the nervous system, which brain region would be disrupted by Huntington's disease?

Which structure would allow you to move your hand away from a hot burner after touching it?

Can Science Cure the Common Cold Introduction to the Scientific Method

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Is It Possible to Supplement Your Way to Better Performance and Health

Body Weight and Health: Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Climate Change

Cancer: DNA Synthesis, Mitosis, and Meiosis

Are You Only As Smart As Your Genes Mendelian and Quantitative Genetics

DNA Detective: Complex Patterns of Inheritance and Dna Profiling

Genetically Modified Organisms: Gene Expression, Mutation,

Where Did We Come From the Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I Species and Races

The Greatest Species on Earth Biodiversity and Classification

Is the Human Population Too Large Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live Climate and Biomes

Organ Donation: Tissues and Organs

Binge Drinking: the Digestive and Urinary Systems

Clearing the Air: Respiratory and Cardiovascular Systems

Vaccination: Protection and Prevention or Peril Immune System,

Human Sex Differences: Endocrine, Skeletal, and Muscular Systems

Is There Something in the Water Reproductive and Developmental Biology

Feeding the World: Plant Structure and Growth

Growing a Green Thumb: Plant Physiology

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