Question 1

Most synapses transmit communicating signals using

Accepted Answer

A)   chemical signaling molecules-neurotransmitters.
B)   electrical impulses travelling through gap junctions.
C)   physical contact between adjacent neurons.
D)   chemical signaling molecules released from neuroglia.

Question 2

Neurotransmitters are found packaged inside ________ in the axon terminal.

Accepted Answer

The answer of Neurotransmitters are found packaged inside ________ in...

Question 3

This neuronal region transmits electrical impulses away from the cell body.

Accepted Answer

A)   synapse
B)   axon terminal
C)   axon
D)   cell body
E)   dendrite

Question 4

________ are chemicals that control the growth of newly forming neurons.

Accepted Answer

The answer of ________ are chemicals that control the growth...

Question 5

This part of the neuron may have branching collaterals.

Accepted Answer

A)   synapse
B)   axon terminal
C)   axon
D)   cell body
E)   dendrite

Question 6

All of the neuron's organelles are localized to the cell body.

Accepted Answer

A) True 
 B)False

Question 7

Any long axon is called a nerve fiber.

Accepted Answer

A) True 
 B)False

Question 8

This region of a neuron contains chromatophilic substance or Nissl bodies.

Accepted Answer

A)   synapse
B)   axon terminal
C)   axon
D)   cell body
E)   dendrite

Question 9

Less than 15% of all neurons are interneurons.

Accepted Answer

A) True 
 B)False

Question 10

The majority of neurons in the body are

Accepted Answer

A)   multipolar.
B)   bipolar.
C)   unipolar.
D)   pseudounipolar.

Question 11

Regeneration of peripheral axons requires

Accepted Answer

A)   construction of a collateral that branches from the point of damage.
B)   deposition of neurofilaments to bridge the gap between the original axon fragments.
C)   formation of a tube by Schwann cells to guide growth.
D)   migration of neural stem cells from the hippocampus.

Question 12

Which of the following statements about neurotransmitters is false?

Accepted Answer

A)   They alter the charge of the postsynaptic neuron membrane.
B)   They are waves of positive charges that travel down axons.
C)   They are released from synaptic vesicles.
D)   They diffuse across the synaptic cleft.

Question 13

Gray matter in the CNS contains all of the following except

Accepted Answer

A)   neuron cell bodies.
B)   neuroglia.
C)   dendrites.
D)   fiber tracts.

Question 14

Describe the myelin sheath.

Accepted Answer

Schwann cells in the PNS and oligodendro...

Question 15

Which of the following statements concerning sensory neurons is incorrect?

Accepted Answer

A)   Most are pseudounipolar.
B)   Most have their cell bodies in ganglia outside the CNS.
C)   They have peripheral and central processes.
D)   They contain only dendrites.

Question 16

This region of a neuron is characterized by numerous, short cytoplasmic extensions and is often referred to as receiving regions.

Accepted Answer

A)   synapse
B)   axon terminal
C)   axon
D)   cell body
E)   dendrite

Question 17

Chromatophilic bodies are clusters of rough ER and free ribosomes that produce the large amount of proteins needed by a neuron.

Accepted Answer

A) True 
 B)False

Question 18

Use the diagrams above to answer the following questions.
-Identify which letter represents an oligodendrocyte.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 19

Oligodendrocytes and Schwann cells myelinate neurons within the peripheral nervous system.

Accepted Answer

A) True 
 B)False

Question 20

Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?

Accepted Answer

A)   bipolar
B)   multipolar
C)   pseudounipolar
D)   unipolar

Exam 12: Fundamentals of the Nervous System and Nervous Tissue

Less than 15% of all neurons are interneurons.

Correct AnswerverifiedShow Answer

This part of the neuron may have branching collaterals.

Correct AnswerverifiedShow Answer

This region of a neuron is characterized by numerous, short cytoplasmic extensions and is often referred to as receiving regions.

Correct AnswerverifiedShow Answer

Which of the following statements concerning sensory neurons is incorrect?

Correct AnswerverifiedShow Answer

________ are chemicals that control the growth of newly forming neurons.

Correct AnswerverifiedShow Answer

Chromatophilic bodies are clusters of rough ER and free ribosomes that produce the large amount of proteins needed by a neuron.

Correct AnswerverifiedShow Answer

Any long axon is called a nerve fiber.

Correct AnswerverifiedShow Answer

This neuronal region transmits electrical impulses away from the cell body.

Correct AnswerverifiedShow Answer

All of the neuron's organelles are localized to the cell body.

Correct AnswerverifiedShow Answer

Regeneration of peripheral axons requires

Correct AnswerverifiedShow Answer

Gray matter in the CNS contains all of the following except

Correct AnswerverifiedShow Answer

Which of the following statements about neurotransmitters is false?

Correct AnswerverifiedShow Answer

Most synapses transmit communicating signals using

Correct AnswerverifiedShow Answer

Neurotransmitters are found packaged inside ________ in the axon terminal.

Correct AnswerverifiedShow Answer

Describe the myelin sheath.

Correct AnswerverifiedSchwann cells in the PNS and oligodendro...View AnswerShow Answer

The majority of neurons in the body are

Correct AnswerverifiedShow Answer

Use the diagrams above to answer the following questions. -Identify which letter represents an oligodendrocyte.

Correct AnswerverifiedShow Answer

This region of a neuron contains chromatophilic substance or Nissl bodies.

Correct AnswerverifiedShow Answer

Oligodendrocytes and Schwann cells myelinate neurons within the peripheral nervous system.

Correct AnswerverifiedShow Answer

Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?

Correct AnswerverifiedShow Answer

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Schwann cells in the PNS and oligodendro...
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