Question 1

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. 
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 2

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

Question 3

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 4

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. 
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 5

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. 
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 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 
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

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

Question 8

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

Question 9

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

Question 10

Branched extensions that receive information from other cells are called

Accepted Answer

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

Question 11

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

Question 12

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. 
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 13

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 14

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 
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 15

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. 
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 16

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. 
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 17

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

Question 18

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. 
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 19

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

Question 20

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

Exam 24: Neural Control and the Senses

Where is a chemical synapse NOT found?

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

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

An action potential in a neuron begins when

The white matter differs from gray matter in that

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

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

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

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)

Branched extensions that receive information from other cells are called

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

Broca's area of the cerebral cortex

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

The active ingredient in Ecstacy works by

A person who has had a frontal lobotomy

MDMA,the active ingredient in Ecstacy,

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

Neurotransmitters

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

The communication point between two neurons is called the

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