Question 1

Broca's area of the cerebral cortex

Accepted Answer

A)   governs speech production.
B)   is the vision center.
C)   is associated with memory storage.
D)   is responsible for hearing and smell.
E)   is the primary motor area.

Question 2

This animal has the most complex eye of any invertebrate and an opening that allows light into a dark chamber.This animal is a(an)

Accepted Answer

A)   lobster.
B)   earthworm.
C)   sea star.
D)   squid.
E)   planarian.

Question 3

The pleasurable feeling one gets from taking Ecstacy is related to the neurotransmitter,

Accepted Answer

A)   endorphin.
B)   acetlycholine.
C)   dopamine.
D)   serotonin.
E)   epinephrine.

Question 4

Classification.The statements describe the main function of specific structures of the brain.Match the appropriate structure from the list to each function
a.cerebellum
b.hypothalamus
c.cerebrum
d.pons
e.thalamus
-coordinates motor activity for moving limbs and maintaining posture

Accepted Answer

The answer of Classification.The statements describe the main function of...

Question 5

Match the eye disorder with its description.
a.astigmatism
b.farsightedness
c.nearsightedness
d.cataract
e.none of these
-fluid pressure inside the vitreous body increases beyond normal pressures

Accepted Answer

The answer of Match the eye disorder with its description.
a.astigmatism
b.farsightedness
c.nearsightedness
d.cataract
e.none...

Question 6

Identify the correct interaction of neurons in the vertebrate nervous system.

Accepted Answer

A)   stimulus, sensory neurons, interneurons, motor neurons, effectors
B)   effectors, sensory neurons, interneurons, motor neurons, stimulus
C)   sensory neurons, stimulus, interneurons, motor neurons, effectors
D)   motor neurons, interneurons, stimulus, sensory neurons, effectors
E)   none of these

Question 7

A person who has had a frontal lobotomy

Accepted Answer

A)   is calmer.
B)   has blunted emotions.
C)   impaired ability to concentrate.
D)   does not behave appropriately.
E)   is described by all of these.

Question 8

The communication point between two neurons is called the

Accepted Answer

A)   electrical synapse.
B)   chemical synapse.
C)   neural junction.
D)   neural bridge.
E)   interneuron.

Question 9

Neurotransmitters

Accepted Answer

A)   are stored in synaptic vesicles.
B)   are chemical signals released by neurons.
C)   are released from the axon via exocytosis.
D)   bind to receptors on target cells.
E)   have all of these characteristics.

Question 10

The white matter differs from gray matter in that

Accepted Answer

A)   white matter is found in the brain, and gray matter is found in the spinal cord.
B)   white matter consists of bundles of myelin-sheathed axons, and gray matter consists of cell bodies, dendrites, and neuroglial cell.
C)   white matter transmits sensory information, and gray matter transmits motor information.
D)   white matter is associated with the sympathetic nervous system, and gray matter is associated with the parasympathetic nervous system.
E)   all of these are true.

Question 11

An action potential in a neuron begins when

Accepted Answer

A)   a threshold potential is reached.
B)   the resting potential is established.
C)   gated sodium channels close.
D)   when gated potassium channels close.
E)   more than one of these occur.

Question 12

Which ions are important in maintaining the membrane potential of the neurons?

Accepted Answer

A)   sodium and chloride
B)   potassium and calcium
C)   sodium and potassium
D)   magnesium and calcium
E)   none of these

Question 13

The active ingredient in Ecstacy works by

Accepted Answer

A)   binding to active transporters in brain neuron membranes.
B)   blocking the movement of neurotransmitters across synapses
C)   binding to neuroreceptors on the ends of neurons
D)   stopping signal transmissions down the length of an axon
E)   inhibiting the release of neurotransmitters at the synaptic junction

Question 14

Use the above figure to answer the following question(s) .
-What is depicted in the above diagram?

Accepted Answer

A)   a sensory neuron
B)   an interneuron
C)   a motor neuron
D)   a neuroglial cell
E)   none of these

Question 15

Branched extensions that receive information from other cells are called

Accepted Answer

A)   axons.
B)   dendrites.
C)   interneurons.
D)   sensory neurons.
E)   cell bodies.

Question 16

A brief reversal of the electric gradient across the plasma membrane is called

Accepted Answer

A)   a threshold potential.
B)   an action potential.
C)   a reverse potential.
D)   a resting potential.
E)   an ionic potential.

Question 17

Where is a chemical synapse NOT found?

Accepted Answer

A)   between two neurons.
B)   between a neuron and a muscle fiber.
C)   between a neuron and a gland.
D)   between a neuron and a capillary.
E)   chemical synapses are found between all of these.

Question 18

This animal has paired nerve cords that connect to a simple brain.This animal is

Accepted Answer

A)   a lobster.
B)   a jellyfish.
C)   an earthworm.
D)   a grasshopper.
E)   more than one of these.

Question 19

MDMA,the active ingredient in Ecstacy,

Accepted Answer

A)   interferes with the removal of serotonin by transport proteins.
B)   causes an increased release in the neurotransmitter, dopamine.
C)   blocks the movement of epinephrine across the synaptic cleft.
D)   binds to endorphins making them unavailable.
E)   causes the rapid transport of acetylcholine across the synaptic cleft.

Question 20

This area of the retina has the most photoreceptors and is relatively free of blood vessels.This area of the retina is the

Accepted Answer

A)   cornea.
B)   optic disk.
C)   fovea.
D)   sclera.
E)   choroid.

Exam 24: Neural Control and the Senses

Identify the correct interaction of neurons in the vertebrate nervous system.

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An action potential in a neuron begins when

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A person who has had a frontal lobotomy

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The pleasurable feeling one gets from taking Ecstacy is related to the neurotransmitter,

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The active ingredient in Ecstacy works by

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The white matter differs from gray matter in that

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This animal has paired nerve cords that connect to a simple brain.This animal is

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Broca's area of the cerebral cortex

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Use the above figure to answer the following question(s) . -What is depicted in the above diagram?

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Classification.The statements describe the main function of specific structures of the brain.Match the appropriate structure from the list to each function a.cerebellum b.hypothalamus c.cerebrum d.pons e.thalamus -coordinates motor activity for moving limbs and maintaining posture

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Which ions are important in maintaining the membrane potential of the neurons?

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Match the eye disorder with its description. a.astigmatism b.farsightedness c.nearsightedness d.cataract e.none of these -fluid pressure inside the vitreous body increases beyond normal pressures

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Branched extensions that receive information from other cells are called

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This animal has the most complex eye of any invertebrate and an opening that allows light into a dark chamber.This animal is a(an)

Correct AnswerverifiedShow Answer

This area of the retina has the most photoreceptors and is relatively free of blood vessels.This area of the retina is the

Correct AnswerverifiedShow Answer

A brief reversal of the electric gradient across the plasma membrane is called

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MDMA,the active ingredient in Ecstacy,

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Neurotransmitters

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The communication point between two neurons is called the

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Where is a chemical synapse NOT found?

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