Question 1

Emotions and the responses to emotions are controlled by the limbic system.

Accepted Answer

A) True 
 B)False

Question 2

At a chemical synapse, the presynaptic and postsynaptic neurons touch and chemicals are exchanged through gap junctions.

Accepted Answer

A) True 
 B)False

Question 3

A neuron's resting potential is due in large part to the diffusion of K+ ions out of the cell, leaving the negatively charged DNA and proteins inside the cell.

Accepted Answer

A) True 
 B)False

Question 4

What happens when the resting potential reaches threshold voltage?

Accepted Answer

A)  Voltage- gated sodium channels close. 
B)  Voltage- gated sodium channels open. 
C)  Voltage- gated potassium channels open. 
D)  The sodium- potassium pump is turned on. 
E)  Resting potassium channels close. 
A)  Voltage- gated sodium channels close. 
B)  Voltage- gated sodium channels open. 
C)  Voltage- gated potassium channels open. 
D)  The sodium- potassium pump is turned on. 
E)  Resting potassium channels close.

Question 5

Nicotine affects neurotransmission by causing more action potentials in the presynaptic neuron and by causing more neurotransmitter to be released per vesicle. This means your postsynaptic neurons

Accepted Answer

A)  are unaffected by nicotine. 
B)  are more easily stimulated in the presence of nicotine. 
C)  are uncoordinated in the presence of nicotine. 
D)  are harder than normal to stimulate in the presence of nicotine. 
E)  cannot be stimulated at all in the presence of nicotine. 
A)  are unaffected by nicotine. 
B)  are more easily stimulated in the presence of nicotine. 
C)  are uncoordinated in the presence of nicotine. 
D)  are harder than normal to stimulate in the presence of nicotine. 
E)  cannot be stimulated at all in the presence of nicotine.

Question 6

Glutamate is the major excitatory neurotransmitter in the brain. Which drug produces a relaxing effect by blocking the receptors for glutamate?

Accepted Answer

A)  Nicotine 
B)  Caffeine 
C)  Cocaine 
D)  Alcohol 
E)  Methamphetamine 
A)  Nicotine 
B)  Caffeine 
C)  Cocaine 
D)  Alcohol 
E)  Methamphetamine

Question 7

In an unstimulated neuron, the plasma membrane is most permeable to ions.

Accepted Answer

A)  sugar 
B)  calcium (Ca2+) 
C)  chloride (Cl-) 
D)  potassium (K+) 
E)  sodium (Na+) 
A)  sugar 
B)  calcium (Ca2+) 
C)  chloride (Cl-) 
D)  potassium (K+) 
E)  sodium (Na+)

Question 8

When you hear a loud noise, you immediately turn your head and direct your eyes toward the sound. Which region of the brain directs this reflexive movement of your eyes?

Accepted Answer

A)  Cerebrum 
B)  Pons 
C)  Midbrain 
D)  Hippocampus 
E)  Hindbrain 
A)  Cerebrum 
B)  Pons 
C)  Midbrain 
D)  Hippocampus 
E)  Hindbrain

Question 9

transmit signals from the central nervous system to the effector organs.

Accepted Answer

The answer of transmit signals from the central nervous system...

Question 10

Action potentials are generated when suddenly open.

Accepted Answer

A)  resting K+ channels 
B)  resting Na+ channels 
C)  voltage- gated Na+ channels 
D)  sodium- potassium pumps 
E)  voltage- gated K+ channels 
A)  resting K+ channels 
B)  resting Na+ channels 
C)  voltage- gated Na+ channels 
D)  sodium- potassium pumps 
E)  voltage- gated K+ channels

Question 11

Neurons receive, process, and transmit information; however, they cannot function without glia. What are glia, and how do they affect neuronal functioning?

Accepted Answer

Glia are nervous system cells that provi

Question 12

The cell bodies of motor neurons are located

Accepted Answer

A)  in the muscles. 
B)  in the gray matter of the spinal cord. 
C)  next to the sensory receptors. 
D)  outside the spinal cord. 
E)  in the forebrain. 
A)  in the muscles. 
B)  in the gray matter of the spinal cord. 
C)  next to the sensory receptors. 
D)  outside the spinal cord. 
E)  in the forebrain.

Question 13

Which region of the brain is responsible for the intricate coordination of finger movements involved in playing the piano?

Accepted Answer

A)  Cerebrum 
B)  Midbrain 
C)  Pons 
D)  Cerebellum 
E)  Hypothalamus 
A)  Cerebrum 
B)  Midbrain 
C)  Pons 
D)  Cerebellum 
E)  Hypothalamus

Question 14

The coordinates muscle movements of the body.

Accepted Answer

A)  hypothalamus 
B)  medulla 
C)  cerebrum 
D)  cerebellum 
E)  parietal lobe 
A)  hypothalamus 
B)  medulla 
C)  cerebrum 
D)  cerebellum 
E)  parietal lobe

Question 15

The resting potential of an unstimulated neuron is between _ millivolts (mV).

Accepted Answer

A)  4 and 9 
B)  -4 and -9 
C)  -400 and -900 
D)  40 and 90 
E)  -40 and -90 
A)  4 and 9 
B)  -4 and -9 
C)  -400 and -900 
D)  40 and 90 
E)  -40 and -90

Question 16

A(n) postsynaptic potential is initiated when neurotransmitter binding to receptor proteins causes the postsynaptic neuron to become less negative.

Accepted Answer

The answer of A(n) postsynaptic potential is initiated when neurotransmitter...

Question 17

-Marta has been having terrible headaches. Now her hand feels like it is being gripped even though it is not actually being touched. She's also having a hard time interpreting sensations. For example, she blistered her hand on a hot pan because she interpreted the heat sensation as cold. Which portion of Marta's brain is most likely damaged?

Accepted Answer

A)  Parietal lobe 
B)  Temporal lobe 
C)  Hippocampus 
D)  Hypothalamus 
E)  Frontal lobe 
A)  Parietal lobe 
B)  Temporal lobe 
C)  Hippocampus 
D)  Hypothalamus 
E)  Frontal lobe

Question 18

The hippocampus is responsible for processing sensory stimuli.

Accepted Answer

A) True 
 B)False

Question 19

Effectors pick up sensory stimuli.

Accepted Answer

A) True 
 B)False

Question 20

Which portion of the brain is responsible for primitive emotions such as fear, rage, and sexual desire?

Accepted Answer

A)  Medulla 
B)  Reticular formation 
C)  Thalamus 
D)  Pons 
E)  Limbic system 
A)  Medulla 
B)  Reticular formation 
C)  Thalamus 
D)  Pons 
E)  Limbic system

Exam 39: The Nervous System

Emotions and the responses to emotions are controlled by the limbic system.

At a chemical synapse, the presynaptic and postsynaptic neurons touch and chemicals are exchanged through gap junctions.

A neuron's resting potential is due in large part to the diffusion of K+ ions out of the cell, leaving the negatively charged DNA and proteins inside the cell.

What happens when the resting potential reaches threshold voltage?

Nicotine affects neurotransmission by causing more action potentials in the presynaptic neuron and by causing more neurotransmitter to be released per vesicle. This means your postsynaptic neurons

Glutamate is the major excitatory neurotransmitter in the brain. Which drug produces a relaxing effect by blocking the receptors for glutamate?

In an unstimulated neuron, the plasma membrane is most permeable to ions.

When you hear a loud noise, you immediately turn your head and direct your eyes toward the sound. Which region of the brain directs this reflexive movement of your eyes?

transmit signals from the central nervous system to the effector organs.

Action potentials are generated when suddenly open.

Neurons receive, process, and transmit information; however, they cannot function without glia. What are glia, and how do they affect neuronal functioning?

The cell bodies of motor neurons are located

Which region of the brain is responsible for the intricate coordination of finger movements involved in playing the piano?

The coordinates muscle movements of the body.

The resting potential of an unstimulated neuron is between _ millivolts (mV).

A(n) postsynaptic potential is initiated when neurotransmitter binding to receptor proteins causes the postsynaptic neuron to become less negative.

The hippocampus is responsible for processing sensory stimuli.

Effectors pick up sensory stimuli.

Which portion of the brain is responsible for primitive emotions such as fear, rage, and sexual desire?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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