Question 1

Excitatory postsynaptic potentials are produced by

Accepted Answer

A) glycine. 
B) glutamic acid. 
C) gamma-aminobutyric acid. 
D) benzodiazepines. 
A) glycine. 
B) glutamic acid. 
C) gamma-aminobutyric acid. 
D) benzodiazepines. B

Question 2

Which of the following is NOT a structural classification of neurons?

Accepted Answer

A) motor neuron 
B) bipolar neuron 
C) multipolar neuron 
D) pseudomultipolar neuron 
A) motor neuron 
B) bipolar neuron 
C) multipolar neuron 
D) pseudomultipolar neuron A

Question 3

The myelin sheaths of CNS neurons are produced by

Accepted Answer

A) Schwann cells. 
B) oligodendrocytes. 
C) ependymal cells. 
D) leukocytes. 
A) Schwann cells. 
B) oligodendrocytes. 
C) ependymal cells. 
D) leukocytes. B

Question 4

White matter is

Accepted Answer

A) myelinated axons in the CNS. 
B) myelinated axons in the PNS. 
C) nonmyelinated cell bodies and dendrites in the CNS. 
D) nonmyelinated axons in the CNS. 
A) myelinated axons in the CNS. 
B) myelinated axons in the PNS. 
C) nonmyelinated cell bodies and dendrites in the CNS. 
D) nonmyelinated axons in the CNS.

Question 5

Retrograde transport

Accepted Answer

A) moves toward the cell body. 
B) moves membranes,vesicles,and viruses. 
C) uses molecular motor proteins of dynein. 
D) All of the choices are correct. 
A) moves toward the cell body. 
B) moves membranes,vesicles,and viruses. 
C) uses molecular motor proteins of dynein. 
D) All of the choices are correct.

Question 6

What type of neuron is found entirely in the CNS?

Accepted Answer

A) sensory neuron 
B) interneuron 
C) association neuron 
D) Both interneuron and association neuron are correct. 
A) sensory neuron 
B) interneuron 
C) association neuron 
D) Both interneuron and association neuron are correct.

Question 7

Sensory neurons

Accepted Answer

A) are multipolar and carry impulses toward the CNS. 
B) are pseudounipolar and carry impulses toward the CNS. 
C) are bipolar and carry impulses away from the CNS. 
D) are multipolar and carry impulses away from the CNS. 
A) are multipolar and carry impulses toward the CNS. 
B) are pseudounipolar and carry impulses toward the CNS. 
C) are bipolar and carry impulses away from the CNS. 
D) are multipolar and carry impulses away from the CNS.

Question 8

Acetylcholine can induce hyperpolarization by

Accepted Answer

A) binding to nicotinic receptors. 
B) binding to muscarinic receptors. 
C) binding to a-adrenergic receptors. 
D) binding to b-adrenergic receptors. 
A) binding to nicotinic receptors. 
B) binding to muscarinic receptors. 
C) binding to a-adrenergic receptors. 
D) binding to b-adrenergic receptors.

Question 9

Which of the following effect(s)acetylcholine synaptic transmission?

Accepted Answer

A) curare 
B) botulinum toxin 
C) strychnine 
D) both curare and botulinum toxin. 
A) curare 
B) botulinum toxin 
C) strychnine 
D) both curare and botulinum toxin.

Question 10

Conduction without decrement means that action potentials transmitted down an axon will not decrease in amplitude.

Accepted Answer

A) True 
 B)False

Question 11

Most synapses in the body are electrical.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following are natural analgesics?

Accepted Answer

A) endorphins 
B) enkephalins 
C) dynorphins 
D) All of the choices are correct. 
A) endorphins 
B) enkephalins 
C) dynorphins 
D) All of the choices are correct.

Question 13

Glycine is released at extensor muscles when flexor muscles are contracting.

Accepted Answer

A) True 
 B)False

Question 14

Endocannabinoids are retrograde neurotransmitters,meaning they are

Accepted Answer

A) released from presynaptic neurons and diffuse to the postsynaptic neuron. 
B) released from postsynaptic neurons and diffuse to the presynaptic neuron. 
C) released from presynaptic neurons and diffuse back to the presynaptic cell body. 
D) None of the choices are correct. 
A) released from presynaptic neurons and diffuse to the postsynaptic neuron. 
B) released from postsynaptic neurons and diffuse to the presynaptic neuron. 
C) released from presynaptic neurons and diffuse back to the presynaptic cell body. 
D) None of the choices are correct.

Question 15

Both long-term potentiation and long-term depression requires release of ___ from the postsynaptic neuron membrane.

Accepted Answer

A) Cl- 
B) K+ 
C) Ca2+ 
D) Mg2+ 
A) Cl- 
B) K+ 
C) Ca2+ 
D) Mg2+

Question 16

Action potentials would be conducted most rapidly by

Accepted Answer

A) a 10 mm diameter myelinated axon. 
B) a 10 mm diameter unmyelinated axon. 
C) a 40 mm diameter myelinated axon. 
D) a 40 mm diameter unmyelinated axon. 
A) a 10 mm diameter myelinated axon. 
B) a 10 mm diameter unmyelinated axon. 
C) a 40 mm diameter myelinated axon. 
D) a 40 mm diameter unmyelinated axon.

Question 17

The greater the number of depolarization regions on an axon,the faster the action potential will be conducted.

Accepted Answer

A) True 
 B)False

Question 18

Inhibition of neuropeptide Y synthesis would

Accepted Answer

A) induce euphoriA. 
B) induce obesity. 
C) stimulate leptin secretion. 
D) inhibit eating. 
A) induce euphoriA. 
B) induce obesity. 
C) stimulate leptin secretion. 
D) inhibit eating.

Question 19

Axonal regeneration is inhibited by

Accepted Answer

A) brain-derived neurotrophic factor. 
B) nerve growth factor. 
C) neurotrophin-3. 
D) myelin-associated inhibitory protein. 
A) brain-derived neurotrophic factor. 
B) nerve growth factor. 
C) neurotrophin-3. 
D) myelin-associated inhibitory protein.

Question 20

Nerve cells depolarize due to the influx of K+.

Accepted Answer

A) True 
 B)False

Excitatory postsynaptic potentials are produced by

Which of the following is NOT a structural classification of neurons?

The myelin sheaths of CNS neurons are produced by

White matter is

Retrograde transport

What type of neuron is found entirely in the CNS?

Sensory neurons

Acetylcholine can induce hyperpolarization by

Which of the following effect(s)acetylcholine synaptic transmission?

Conduction without decrement means that action potentials transmitted down an axon will not decrease in amplitude.

Most synapses in the body are electrical.

Which of the following are natural analgesics?

Glycine is released at extensor muscles when flexor muscles are contracting.

Endocannabinoids are retrograde neurotransmitters,meaning they are

Both long-term potentiation and long-term depression requires release of ___ from the postsynaptic neuron membrane.

Action potentials would be conducted most rapidly by

The greater the number of depolarization regions on an axon,the faster the action potential will be conducted.

Inhibition of neuropeptide Y synthesis would

Axonal regeneration is inhibited by

Nerve cells depolarize due to the influx of K⁺.

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output, Blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation of Metabolism

Reproduction

Filters

Exam 7: The Nervous System: Neurons and Synapses

Excitatory postsynaptic potentials are produced by

Which of the following is NOT a structural classification of neurons?

The myelin sheaths of CNS neurons are produced by

White matter is

Retrograde transport

What type of neuron is found entirely in the CNS?

Sensory neurons

Acetylcholine can induce hyperpolarization by

Which of the following effect(s)acetylcholine synaptic transmission?

Conduction without decrement means that action potentials transmitted down an axon will not decrease in amplitude.

Most synapses in the body are electrical.

Which of the following are natural analgesics?

Glycine is released at extensor muscles when flexor muscles are contracting.

Endocannabinoids are retrograde neurotransmitters,meaning they are

Both long-term potentiation and long-term depression requires release of ___ from the postsynaptic neuron membrane.

Action potentials would be conducted most rapidly by

The greater the number of depolarization regions on an axon,the faster the action potential will be conducted.

Inhibition of neuropeptide Y synthesis would

Axonal regeneration is inhibited by

Nerve cells depolarize due to the influx of K+.

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output, Blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation of Metabolism

Reproduction

Filters

Nerve cells depolarize due to the influx of K⁺.