Question 1

Gray matter in the central nervous system consists of all of the following except

Accepted Answer

A)  cell bodies. 
B)  dendrites. 
C)  neuroglia. 
D)  myelin sheaths. 
E)  more than one of these. 
A)  cell bodies. 
B)  dendrites. 
C)  neuroglia. 
D)  myelin sheaths. 
E)  more than one of these.

Question 2

Use the above figure to answer the following question(s).
-The ____ of the eye is a tissue that is densely packed with photoreceptors.In the above diagram of the eye,which letter identifies it?

Accepted Answer

A)  lens; A 
B)  vitreous body; C 
C)  retina; C 
D)  sclera; A 
E)  cornea; D 
A)  lens; A 
B)  vitreous body; C 
C)  retina; C 
D)  sclera; A 
E)  cornea; D

Question 3

When a neuron is at rest

Accepted Answer

A)  there are more positively charged ions inside the axon than outside it. 
B)  there are more negatively charged ions inside the axon than outside it. 
C)  there are more negatively charged ions outside the axon than inside it. 
D)  there are equal amounts of negatively charged ions outside the axon and inside it. 
E)  there are more positively charged ions outside the axon than inside it. 
A)  there are more positively charged ions inside the axon than outside it. 
B)  there are more negatively charged ions inside the axon than outside it. 
C)  there are more negatively charged ions outside the axon than inside it. 
D)  there are equal amounts of negatively charged ions outside the axon and inside it. 
E)  there are more positively charged ions outside the axon than inside it.

Question 4

Prozac,an antidepressant,is most closely associated with the neurotransmitter,

Accepted Answer

A)  acetlycholine. 
B)  serontonin. 
C)  epinephrine. 
D)  dopamine. 
E)  an endorphin. 
A)  acetlycholine. 
B)  serontonin. 
C)  epinephrine. 
D)  dopamine. 
E)  an endorphin.

Question 5

When an action potential begins

Accepted Answer

A)  sodium is blocked from leaving the neuron cytoplasm. 
B)  sodium is blocked from entering the neuron cytoplasm. 
C)  sodium diffuses from the interstitial fluid into the neuron cytoplasm. 
D)  sodium diffuses from the neuron cytoplasm into the interstitial fluid. 
E)  sodium is actively pumped from the interstitial fluid into the neuron cytoplasm. 
A)  sodium is blocked from leaving the neuron cytoplasm. 
B)  sodium is blocked from entering the neuron cytoplasm. 
C)  sodium diffuses from the interstitial fluid into the neuron cytoplasm. 
D)  sodium diffuses from the neuron cytoplasm into the interstitial fluid. 
E)  sodium is actively pumped from the interstitial fluid into the neuron cytoplasm.

Question 6

The boundary between the middle ear and the inner ear is the

Accepted Answer

A)  eardrum. 
B)  oval window. 
C)  cochlea. 
D)  stirrup. 
E)  auditory canal. 
A)  eardrum. 
B)  oval window. 
C)  cochlea. 
D)  stirrup. 
E)  auditory canal.

Question 7

Which is the correct path that light takes from the environment to the photoreceptors of a human eye?

Accepted Answer

A)  cornea>>pupil>>lens>>vitreous body>>retina 
B)  pupil>>cornea>>lens>>vitreous body>>retina 
C)  cornea>>pupil>>lens>>retina>>
Vitreous body 
D)  lens>>pupil>>cornea>>vitreous body>>retina 
E)  cornea>>lens>>pupil>>vitreous body>>retina 
A)  cornea>>pupil>>lens>>vitreous body>>retina 
B)  pupil>>cornea>>lens>>vitreous body>>retina 
C)  cornea>>pupil>>lens>>retina>>
Vitreous body 
D)  lens>>pupil>>cornea>>vitreous body>>retina 
E)  cornea>>lens>>pupil>>vitreous body>>retina

Question 8

This part of the brain coordinates motor activity for moving limbs and maintaining posture.This part of the brain is the

Accepted Answer

A)  cerebrum. 
B)  cerebellum. 
C)  medulla oblongata. 
D)  pons. 
E)  hypothalamus. 
A)  cerebrum. 
B)  cerebellum. 
C)  medulla oblongata. 
D)  pons. 
E)  hypothalamus.

Question 9

Match the neurotransmitter with its description.
a.serotonin
b.epinephrine
c.dopamine
d.acetylcholine
e.endorphins
f.none of these neurotransmittes match the description
-nicotine blocks receptors for this neurotransmitter

Accepted Answer

The answer of Match the neurotransmitter with its description.
a.serotonin
b.epinephrine
c.dopamine
d.acetylcholine
e.endorphins
f.none of...

Question 10

Use the above figure to answer the following question(s).
-Referring to the above diagram of the brain,B identifies which lobe of the cerebrum?

Accepted Answer

A)  frontal lobe 
B)  parietal lobe 
C)  occipital lobe 
D)  temporal lobe 
E)  primary motor cortex 
A)  frontal lobe 
B)  parietal lobe 
C)  occipital lobe 
D)  temporal lobe 
E)  primary motor cortex

Question 11

Which of the following can be an effect of Ecstacy?

Accepted Answer

A)  reduced anxiety 
B)  more sensitive to your environment 
C)  bleeding from all of your body openings 
D)  death 
E)  all of these can be effects of Ecstacy 
A)  reduced anxiety 
B)  more sensitive to your environment 
C)  bleeding from all of your body openings 
D)  death 
E)  all of these can be effects of Ecstacy

Question 12

The membrane potential of a neuron is defined as the

Accepted Answer

A)  measured capacity of a neuron to create an electrical impulse. 
B)  voltage in the neuron plasma membrane. 
C)  threshold potential of a neuron. 
D)  the electric gradient across a neuron's plasma membrane. 
E)  amount of voltage it takes to stimulate a neuron to fire. 
A)  measured capacity of a neuron to create an electrical impulse. 
B)  voltage in the neuron plasma membrane. 
C)  threshold potential of a neuron. 
D)  the electric gradient across a neuron's plasma membrane. 
E)  amount of voltage it takes to stimulate a neuron to fire.

Question 13

Neuroglia are

Accepted Answer

A)  another term for neurons. 
B)  helper cells that move neurons from place to place. 
C)  cells that provide insulation to neurons. 
D)  chemicals that conduct signals across synapses. 
E)  more than one of these. 
A)  another term for neurons. 
B)  helper cells that move neurons from place to place. 
C)  cells that provide insulation to neurons. 
D)  chemicals that conduct signals across synapses. 
E)  more than one of these.

Question 14

Action potentials

Accepted Answer

A)  can move up or down an axon, away from or towards the cell body. 
B)  move in a one way direction towards the cell body . 
C)  move in a one way direction away from the cell body. 
D)  can jump from cell to cell. 
E)  do none of these. 
A)  can move up or down an axon, away from or towards the cell body. 
B)  move in a one way direction towards the cell body . 
C)  move in a one way direction away from the cell body. 
D)  can jump from cell to cell. 
E)  do none of these.

Question 15

Sensory receptors convert stimulus energy into

Accepted Answer

A)  resting potentials. 
B)  action potentials. 
C)  activation energy. 
D)  potential energy. 
E)  resting potentials and activation energy only. 
A)  resting potentials. 
B)  action potentials. 
C)  activation energy. 
D)  potential energy. 
E)  resting potentials and activation energy only.

Question 16

Which of the following represents the charged environment inside a neuron and in the interstitial fluid that surrounds it?

Accepted Answer

A)  negatively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
B)  positively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
C)  negatively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
D)  positively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
E)  negatively charged proteins inside; equal amounts of sodium and potassium ions inside and outside 
A)  negatively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
B)  positively charged proteins inside; more sodium ions inside than outside; more potassium ions outside than inside 
C)  negatively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
D)  positively charged proteins inside; more sodium ions outside than inside; more potassium ions inside than outside 
E)  negatively charged proteins inside; equal amounts of sodium and potassium ions inside and outside

Question 17

When potassium ion channels open,which of the following occurs?

Accepted Answer

A)  potassium ions flow into the axon cytoplasm 
B)  the axon cytoplasm becomes more positively charged 
C)  sodium ions diffuse into the axon cytoplasm 
D)  all of these occur 
E)  none of these occur 
A)  potassium ions flow into the axon cytoplasm 
B)  the axon cytoplasm becomes more positively charged 
C)  sodium ions diffuse into the axon cytoplasm 
D)  all of these occur 
E)  none of these occur

Question 18

Use the above figure to answer the following question(s).
-Referring to the above diagram of the brain,D identifies which lobe of the cerebrum?

Accepted Answer

A)  frontal lobe 
B)  parietal lobe 
C)  occipital lobe 
D)  temporal lobe 
E)  primary motor cortex 
A)  frontal lobe 
B)  parietal lobe 
C)  occipital lobe 
D)  temporal lobe 
E)  primary motor cortex

Question 19

This neurotransmitter stimulates skeletal muscle contraction,slows cardiac muscle contraction rate,and affects mood and memory.This neurotransmitter is

Accepted Answer

A)  acetylcholine. 
B)  epinephrine. 
C)  dopamine. 
D)  serotonin. 
E)  an endorphin. 
A)  acetylcholine. 
B)  epinephrine. 
C)  dopamine. 
D)  serotonin. 
E)  an endorphin.

Question 20

The order of signal transmission beginning with a stimulus is from

Accepted Answer

A)  sensory neuron to interneuron to motor neuron. 
B)  motor neuron to sensory neuron to interneuron. 
C)  interneuron to sensory neuron to motor neuron. 
D)  sensory neuron to motor neuron to interneuron. 
E)  motor neuron to interneuron to sensory neuron. 
A)  sensory neuron to interneuron to motor neuron. 
B)  motor neuron to sensory neuron to interneuron. 
C)  interneuron to sensory neuron to motor neuron. 
D)  sensory neuron to motor neuron to interneuron. 
E)  motor neuron to interneuron to sensory neuron.

Exam 24: Neural Control and the Senses

Gray matter in the central nervous system consists of all of the following except

Use the above figure to answer the following question(s). -The ____ of the eye is a tissue that is densely packed with photoreceptors.In the above diagram of the eye,which letter identifies it?

When a neuron is at rest

Prozac,an antidepressant,is most closely associated with the neurotransmitter,

When an action potential begins

The boundary between the middle ear and the inner ear is the

Which is the correct path that light takes from the environment to the photoreceptors of a human eye?

This part of the brain coordinates motor activity for moving limbs and maintaining posture.This part of the brain is the

Match the neurotransmitter with its description. a.serotonin b.epinephrine c.dopamine d.acetylcholine e.endorphins f.none of these neurotransmittes match the description -nicotine blocks receptors for this neurotransmitter

Use the above figure to answer the following question(s). -Referring to the above diagram of the brain,B identifies which lobe of the cerebrum?

Which of the following can be an effect of Ecstacy?

The membrane potential of a neuron is defined as the

Neuroglia are

Action potentials

Sensory receptors convert stimulus energy into

Which of the following represents the charged environment inside a neuron and in the interstitial fluid that surrounds it?

When potassium ion channels open,which of the following occurs?

Use the above figure to answer the following question(s). -Referring to the above diagram of the brain,D identifies which lobe of the cerebrum?

This neurotransmitter stimulates skeletal muscle contraction,slows cardiac muscle contraction rate,and affects mood and memory.This neurotransmitter is

The order of signal transmission beginning with a stimulus is from

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters