Question 1

Which of the following is NOT one of the general senses?

Accepted Answer

A)   pain
B)   vision
C)   touch
D)   temperatureE) A) and D)
F) B) and C)

Question 2

The layered membranes that jacket the central nervous system are the

Accepted Answer

A)   gray matter.
B)   meninges.
C)   white matter.
D)   epidermis.
E)   myelin sheaths.F) A) and B)
G) C) and D)

Question 3

The junctions between one neuron and another neuron are called

Accepted Answer

A)   axons.
B)   dendrites.
C)   synapses.
D)   cell bodies.
E)   myelin sheaths.F) A) and E)
G) B) and C)

Question 4

The nervous tissue of the central nervous system that consists of neuron cell bodies and synapses is the

Accepted Answer

A)   white matter.
B)   white reflex.
C)   gray matter.
D)   gray reflex.
E)   red matter.F) C) and D)
G) A) and D)

Question 5

What is true of olfactory cells and taste buds?

Accepted Answer

A)   Olfactory receptors are chemoreceptors that detect odor molecules, while taste buds contain mechanoreceptors that allow the sense of taste in the mouth.
B)   Olfactory receptors are mechanoreceptors that detect odor molecules, while taste buds contain chemoreceptors that allow the sense of taste in the mouth.
C)   Olfactory receptors are chemoreceptors that detect odor molecules, and taste buds are chemoreceptors that allow the sense of taste in the mouth.
D)   Olfactory receptors are mechanoreceptors that detect odor molecules, and taste buds are mechanoreceptors that allow the sense of taste in the mouth.E) A) and B)
F) A) and C)

Question 6

Odorous molecules are first detected in the nose and are transduced into receptor potentials,which travel to the olfactory bulb and then to the cerebral cortex.

Accepted Answer

A) True 
 B)False

Question 7

In a reflex,the ________ receives the signal that your finger is too hot and sends the message to move the finger away from the stove.

Accepted Answer

A)   spinal cord
B)   peripheral nervous system
C)   brain
D)   hypothalamus
E)   thermoreceptorF) A) and E)
G) A) and D)

Question 8

The division of the nervous system that integrates sensory information and coordinates the body's response is the

Accepted Answer

A)   peripheral nervous system.
B)   central nervous system.
C)   somatic nervous system.
D)   autonomic nervous system.
E)   sympathetic nervous system.F) A) and B)
G) A) and E)

Question 9

In the cochlea,sound is transmitted into nerve signals that reach the brain through

Accepted Answer

A)   photoreceptors.
B)   thermoreceptors.
C)   pain receptors.
D)   mechanoreceptors.
E)   chemoreceptors.F) All of the above
G) C) and D)

Question 10

In humans,what receptor is used primarily to detect sharp blows and excessive heat?

Accepted Answer

A)   mechanoreceptor
B)   chemoreceptor
C)   photoreceptor
D)   thermoreceptor
E)   pain receptorF) B) and C)
G) D) and E)

Question 11

An action potential will occur only if

Accepted Answer

A)   sodium ions are released into the interior of the axon.
B)   the interior of the axon becomes less negative than the resting potential.
C)   the threshold potential is reached.
D)   a stimulus triggers a neuron to fire.
E)   All of the answer choices are correct.F) A) and D)
G) A) and E)

Question 12

A neuron recharges when Na⁺ ions

Accepted Answer

A)   are actively pumped against their concentration gradient.
B)   spontaneously move down their concentration gradient.
C)   spontaneously move against their concentration gradient.
D)   are actively pumped down their concentration gradient.E) B) and C)
F) A) and B)

Question 13

If you wanted to stop transmission from one neuron to another,you would want to destroy all

Accepted Answer

A)   neurotransmitters.
B)   T tubules.
C)   resting potentials.
D)   sarcomeres.
E)   myelin sheaths.F) A) and B)
G) A) and C)

Question 14

ATP is used to power the creation of a neuron's resting potential.

Accepted Answer

A) True 
 B)False

Question 15

In myelinated axons

Accepted Answer

A)   potassium ions can diffuse into the axon only at sections that are myelinated.
B)   sodium ions can diffuse into the axon only at gaps in the myelin.
C)   sodium ions can diffuse out of the axon only at sections that are myelinated.
D)   All of the answer choices are correct.E) A) and D)
F) A) and C)

Question 16

A chemical that travels from a sending neuron to a receiving neuron is called a(n)

Accepted Answer

A)   synaptic cleft.
B)   action potential.
C)   hormone.
D)   neurotransmitter.
E)   neurotoxin.F) D) and E)
G) A) and C)

Question 17

Chemical substances that elicit specific responses in other members of the same species are referred to as

Accepted Answer

A)   hormones.
B)   pheromones.
C)   neuroglia.
D)   meninges.
E)   cochleas.F) All of the above
G) A) and B)

Question 18

You are lying on a sand dune looking over the water, listening to the waves, and enjoying the feel of the sun and wind on your skin. You also smell the salty ocean air and seaweed that has washed ashore.
-When you hear the waves,what is being activated?

Accepted Answer

A)   mechanoreceptor
B)   thermoreceptor
C)   photoreceptor
D)   chemoreceptor
E)   pain receptorF) A) and E)
G) B) and E)

Question 19

Reminyl, known chemically as galantamine, works like the nation's three other Alzheimer's medications. It modestly slows cognitive (mental ability)  decline by inhibiting the breakdown of acetylcholine, a brain chemical vital for nerve cells to communicate, by the enzyme acetylcholineesterase.
-Acetylcholine is what?

Accepted Answer

A)   an enzyme
B)   a neurotransmitter
C)   a voltage gated ion channel
D)   a receptor
E)   a source of fuel for neuronsF) C) and D)
G) A) and C)

Question 20

If asked to point to the place on a model of the brain where subconscious muscular movements are coordinated,you would point to the

Accepted Answer

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

Exam 24: The Nervous System and the Senses

You are lying on a sand dune looking over the water, listening to the waves, and enjoying the feel of the sun and wind on your skin. You also smell the salty ocean air and seaweed that has washed ashore. -When you hear the waves,what is being activated?

Correct Answer
verified

What is true of olfactory cells and taste buds?

Correct Answer
verified

The junctions between one neuron and another neuron are called

Correct Answer
verified

In humans,what receptor is used primarily to detect sharp blows and excessive heat?

Correct Answer
verified

In the cochlea,sound is transmitted into nerve signals that reach the brain through

Correct Answer
verified

In myelinated axons

Correct Answer
verified

An action potential will occur only if

Correct Answer
verified

If asked to point to the place on a model of the brain where subconscious muscular movements are coordinated,you would point to the

Correct Answer
verified

If you wanted to stop transmission from one neuron to another,you would want to destroy all

Correct Answer
verified

Which of the following is NOT one of the general senses?

Correct Answer
verified

The nervous tissue of the central nervous system that consists of neuron cell bodies and synapses is the

Correct Answer
verified

Odorous molecules are first detected in the nose and are transduced into receptor potentials,which travel to the olfactory bulb and then to the cerebral cortex.

Correct Answer
verified

A neuron recharges when Na⁺ ions

Correct Answer
verified

ATP is used to power the creation of a neuron's resting potential.

Correct Answer
verified

In a reflex,the ________ receives the signal that your finger is too hot and sends the message to move the finger away from the stove.

Correct Answer
verified

The division of the nervous system that integrates sensory information and coordinates the body's response is the

Correct Answer
verified

A chemical that travels from a sending neuron to a receiving neuron is called a(n)

Correct Answer
verified

Correct Answer
verified

Chemical substances that elicit specific responses in other members of the same species are referred to as

Correct Answer
verified

The layered membranes that jacket the central nervous system are the

Correct Answer
verified

Exam 24: The Nervous System and the Senses

You are lying on a sand dune looking over the water, listening to the waves, and enjoying the feel of the sun and wind on your skin. You also smell the salty ocean air and seaweed that has washed ashore. -When you hear the waves,what is being activated?

Correct AnswerverifiedShow Answer

What is true of olfactory cells and taste buds?

Correct AnswerverifiedShow Answer

The junctions between one neuron and another neuron are called

Correct AnswerverifiedShow Answer

In humans,what receptor is used primarily to detect sharp blows and excessive heat?

Correct AnswerverifiedShow Answer

In the cochlea,sound is transmitted into nerve signals that reach the brain through

Correct AnswerverifiedShow Answer

In myelinated axons

Correct AnswerverifiedShow Answer

An action potential will occur only if

Correct AnswerverifiedShow Answer

If asked to point to the place on a model of the brain where subconscious muscular movements are coordinated,you would point to the

Correct AnswerverifiedShow Answer

If you wanted to stop transmission from one neuron to another,you would want to destroy all

Correct AnswerverifiedShow Answer

Which of the following is NOT one of the general senses?

Correct AnswerverifiedShow Answer

The nervous tissue of the central nervous system that consists of neuron cell bodies and synapses is the

Correct AnswerverifiedShow Answer

Odorous molecules are first detected in the nose and are transduced into receptor potentials,which travel to the olfactory bulb and then to the cerebral cortex.

Correct AnswerverifiedShow Answer

A neuron recharges when Na⁺ ions

Correct AnswerverifiedShow Answer

ATP is used to power the creation of a neuron's resting potential.

Correct AnswerverifiedShow Answer

In a reflex,the ________ receives the signal that your finger is too hot and sends the message to move the finger away from the stove.

Correct AnswerverifiedShow Answer

The division of the nervous system that integrates sensory information and coordinates the body's response is the

Correct AnswerverifiedShow Answer

A chemical that travels from a sending neuron to a receiving neuron is called a(n)

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Chemical substances that elicit specific responses in other members of the same species are referred to as

Correct AnswerverifiedShow Answer

The layered membranes that jacket the central nervous system are the

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified