Question 1

The ability of a neuron to transmit charge through its cytoplasm is called cable properties and is very

Accepted Answer

A) good. 
B) strong. 
C) poor. 
D) easy. 
A) good. 
B) strong. 
C) poor. 
D) easy.

Question 2

The blood-brain barrier prevents hydrophobic molecules from diffusing into the brain.

Accepted Answer

A) True 
 B)False

Question 3

Muscarinic Ach receptors are found in all of the following locations EXCEPT

Accepted Answer

A) skeletal muscle 
B) smooth muscle 
C) cardiac muscle 
D) glands 
A) skeletal muscle 
B) smooth muscle 
C) cardiac muscle 
D) glands

Question 4

ATP and adenosine can act as neurtransmitters

Accepted Answer

A) by release from astrocytes. 
B) as cotransmitters. 
C) as paracrine regulators. 
D) All of the choices are correct. 
A) by release from astrocytes. 
B) as cotransmitters. 
C) as paracrine regulators. 
D) All of the choices are correct.

Question 5

Neurotransmitter release can be inhibited by damaging the SNARE complex.

Accepted Answer

A) True 
 B)False

Question 6

The gap of exposed axon in the myelin sheath is the

Accepted Answer

A) neurilemmA. 
B) node of Ranvier. 
C) sheath of Schwann. 
D) white matter. 
A) neurilemmA. 
B) node of Ranvier. 
C) sheath of Schwann. 
D) white matter.

Question 7

A bundle of axons in the CNS is called a/an

Accepted Answer

A) nerve. 
B) bundle. 
C) tract. 
D) neuron. 
A) nerve. 
B) bundle. 
C) tract. 
D) neuron.

Question 8

Botulism toxin prevents release of Ach,causing

Accepted Answer

A) flaccid paralysis. 
B) hemiplegia. 
C) spastic paralysis. 
D) None of the choices are correct. 
A) flaccid paralysis. 
B) hemiplegia. 
C) spastic paralysis. 
D) None of the choices are correct.

Question 9

Nitric oxide

Accepted Answer

A) is a chemical messenger activating adenylate cyclase. 
B) stimulates the dilation of blood vessels. 
C) is produced from L-asparagine. 
D) All of the choices are correct. 
A) is a chemical messenger activating adenylate cyclase. 
B) stimulates the dilation of blood vessels. 
C) is produced from L-asparagine. 
D) All of the choices are correct.

Question 10

Which of the following is NOT a function of astrocytes?

Accepted Answer

A) can take up NT from a synapse 
B) can stimulate or inhibit neurons 
C) needed to form synapses in the CNS 
D) phagocytose foreign material in the CNS 
E) forms the blood-brain barrier 
A) can take up NT from a synapse 
B) can stimulate or inhibit neurons 
C) needed to form synapses in the CNS 
D) phagocytose foreign material in the CNS 
E) forms the blood-brain barrier

Question 11

Destruction of astrocytes would decrease the rate at which action potentials are transmitted.

Accepted Answer

A) True 
 B)False

Question 12

Where is glycine released?

Accepted Answer

A) in the PNS 
B) at skeletal muscleds 
C) in the CNS 
D) at the diaphragm 
A) in the PNS 
B) at skeletal muscleds 
C) in the CNS 
D) at the diaphragm

Question 13

The brain and spinal cord comprise the

Accepted Answer

A) central nervous system. 
B) peripheral nervous system. 
C) peripheral ganglia. 
D) spinal nerves. 
A) central nervous system. 
B) peripheral nervous system. 
C) peripheral ganglia. 
D) spinal nerves.

Question 14

Glial cells normally lose their mitotic ability prior to birth.

Accepted Answer

A) True 
 B)False

Question 15

The most abundant neuropeptide in the brain is

Accepted Answer

A) neuropeptide Y. 
B) neuropeptide Z. 
C) substance P. 
D) CCK. 
A) neuropeptide Y. 
B) neuropeptide Z. 
C) substance P. 
D) CCK.

Question 16

Serotonin is synthesized from the amino acid

Accepted Answer

A) alanine. 
B) glycine. 
C) tryptophan. 
D) serine. 
A) alanine. 
B) glycine. 
C) tryptophan. 
D) serine.

Question 17

Cocaine blocks the release of dopamine,norepinephrine,and serotonin.

Accepted Answer

A) True 
 B)False

Question 18

The mechanism that allows many Na+ ions to move into the axon is

Accepted Answer

A) negative feedback. 
B) positive feedback. 
C) equilibrium feedback. 
D) None of the choices are correct. 
A) negative feedback. 
B) positive feedback. 
C) equilibrium feedback. 
D) None of the choices are correct.

Question 19

Which of the following is NOT true of axonal transport?

Accepted Answer

A) uses molecular motors 
B) can transport anteroretrograde 
C) has one fast and two slow components 
D) is a passive process 
A) uses molecular motors 
B) can transport anteroretrograde 
C) has one fast and two slow components 
D) is a passive process

Question 20

The nerve is the basic structural and functional unit of the nervous system.

Accepted Answer

A) True 
 B)False

The ability of a neuron to transmit charge through its cytoplasm is called cable properties and is very

The blood-brain barrier prevents hydrophobic molecules from diffusing into the brain.

Muscarinic Ach receptors are found in all of the following locations EXCEPT

ATP and adenosine can act as neurtransmitters

Neurotransmitter release can be inhibited by damaging the SNARE complex.

The gap of exposed axon in the myelin sheath is the

A bundle of axons in the CNS is called a/an

Botulism toxin prevents release of Ach,causing

Nitric oxide

Which of the following is NOT a function of astrocytes?

Destruction of astrocytes would decrease the rate at which action potentials are transmitted.

Where is glycine released?

The brain and spinal cord comprise the

Glial cells normally lose their mitotic ability prior to birth.

The most abundant neuropeptide in the brain is

Serotonin is synthesized from the amino acid

Cocaine blocks the release of dopamine,norepinephrine,and serotonin.

The mechanism that allows many Na⁺ ions to move into the axon is

Which of the following is NOT true of axonal transport?

The nerve is the basic structural and functional unit of the nervous system.

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

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Exam 7: The Nervous System: Neurons and Synapses

The ability of a neuron to transmit charge through its cytoplasm is called cable properties and is very

The blood-brain barrier prevents hydrophobic molecules from diffusing into the brain.

Muscarinic Ach receptors are found in all of the following locations EXCEPT

ATP and adenosine can act as neurtransmitters

Neurotransmitter release can be inhibited by damaging the SNARE complex.

The gap of exposed axon in the myelin sheath is the

A bundle of axons in the CNS is called a/an

Botulism toxin prevents release of Ach,causing

Nitric oxide

Which of the following is NOT a function of astrocytes?

Destruction of astrocytes would decrease the rate at which action potentials are transmitted.

Where is glycine released?

The brain and spinal cord comprise the

Glial cells normally lose their mitotic ability prior to birth.

The most abundant neuropeptide in the brain is

Serotonin is synthesized from the amino acid

Cocaine blocks the release of dopamine,norepinephrine,and serotonin.

The mechanism that allows many Na+ ions to move into the axon is

Which of the following is NOT true of axonal transport?

The nerve is the basic structural and functional unit of the nervous system.

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

The mechanism that allows many Na⁺ ions to move into the axon is