Question 1

2- The process of ________ ensures that ions will distribute themselves evenly through a solvent.

Accepted Answer

The answer of 2- The process of ________ ensures that...

Question 2

The cell membrane is formed by a dual layer of ________ molecules.

Accepted Answer

The answer of The cell membrane is formed by a...

Question 3

2-________ was the primary symptom shown by Kathryn D.

Accepted Answer

The answer of 2-________ was the primary symptom shown by...

Question 4

A drug that specifically killed the _______ cells would be expected to alter the physical and nutritional support of brain cells.

Accepted Answer

A)  phagocyte 
B)  Schwann 
C)  microglia 
D)  astrocyte 
E)  microtubule 
A)  phagocyte 
B)  Schwann 
C)  microglia 
D)  astrocyte 
E)  microtubule

Question 5

Among the cable properties of axons are the fact that

Accepted Answer

A)  subthreshold signals degrade with distance from the point of stimulation. 
B)  a high rate of firing produces a stronger response in muscle. 
C)  subthreshold signals grow in size with distance. 
D)  subthreshold signals remain constant in size along the axon membrane. 
E)  subthreshold signals grow in size as time passes. 
A)  subthreshold signals degrade with distance from the point of stimulation. 
B)  a high rate of firing produces a stronger response in muscle. 
C)  subthreshold signals grow in size with distance. 
D)  subthreshold signals remain constant in size along the axon membrane. 
E)  subthreshold signals grow in size as time passes.

Question 6

Which of the following will "neutralize" an EPSP?

Accepted Answer

A)  further opening a sodium channel 
B)  allowing intracellular anions to leave the cell 
C)  closing a potassium channel 
D)  opening a chloride channel 
E)  opening a calcium channel 
A)  further opening a sodium channel 
B)  allowing intracellular anions to leave the cell 
C)  closing a potassium channel 
D)  opening a chloride channel 
E)  opening a calcium channel

Question 7

The physical gap that carries a neural message between two nerve cells is the

Accepted Answer

A)  glial junction. 
B)  axon contact 
C)  synapse. 
D)  dendritic apposition. 
E)  neural gap. 
A)  glial junction. 
B)  axon contact 
C)  synapse. 
D)  dendritic apposition. 
E)  neural gap.

Question 8

The presence of a barrier between the bloodstream and the brain is suggested by the observation that

Accepted Answer

A)  all cells of the body are stained by a dye injected into the bloodstream. 
B)  injection of dye into the bloodstream stains all cells but those of the brain and spinal cord. 
C)  the gut is stained by a dye injected into the brain ventricles. 
D)  injection of dye into the spinal cord stains the cells of the gut. 
E)  injection of dye into the gut stains the cells of the spinal cord. 
A)  all cells of the body are stained by a dye injected into the bloodstream. 
B)  injection of dye into the bloodstream stains all cells but those of the brain and spinal cord. 
C)  the gut is stained by a dye injected into the brain ventricles. 
D)  injection of dye into the spinal cord stains the cells of the gut. 
E)  injection of dye into the gut stains the cells of the spinal cord.

Question 9

A neuron membrane potential moves from -90 mV to -We would term this change in potential as a(n)

Accepted Answer

A)  depolarization. 
B)  resting potential. 
C)  action potential. 
D)  hyperpolarization. 
E)  inhibitory local potential. 
A)  depolarization. 
B)  resting potential. 
C)  action potential. 
D)  hyperpolarization. 
E)  inhibitory local potential.

Question 10

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

Accepted Answer

A)  Sodium ions move into the cell. 
B)  Potassium ions move out of the cell. 
C)  Potassium ions move into the cell. 
D)  Chloride ions move into the cell. 
E)  Protein anions move out of the cell. 
A)  Sodium ions move into the cell. 
B)  Potassium ions move out of the cell. 
C)  Potassium ions move into the cell. 
D)  Chloride ions move into the cell. 
E)  Protein anions move out of the cell.

Question 11

2- In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Accepted Answer

The answer of 2- In a myelinated axon, ions enter...

Question 12

Neurotransmitter molecules are most commonly secreted from the

Accepted Answer

A)  glial cell. 
B)  dendrite. 
C)  axon terminal. 
D)  dendritic apposition. 
E)  soma. 
A)  glial cell. 
B)  dendrite. 
C)  axon terminal. 
D)  dendritic apposition. 
E)  soma.

Question 13

A key function of the _______ nerve cell is to transmit sensory information.

Accepted Answer

A)  apolar 
B)  multipolar 
C)  glial fiber 
D)  bipolar 
E)  heteropolar 
A)  apolar 
B)  multipolar 
C)  glial fiber 
D)  bipolar 
E)  heteropolar

Question 14

Nerve cells are able to rapidly metabolize fuel because

Accepted Answer

A)  of their capacity to store glucose in the cytoplasm. 
B)  neurons receive lactate from astrocytes. 
C)  glial cells can transfer ATP into neurons. 
D)  brain blood vessels can convert glucose into lactate for neuron use. 
E)  glial cell mitochondria process fuel for the neuron. 
A)  of their capacity to store glucose in the cytoplasm. 
B)  neurons receive lactate from astrocytes. 
C)  glial cells can transfer ATP into neurons. 
D)  brain blood vessels can convert glucose into lactate for neuron use. 
E)  glial cell mitochondria process fuel for the neuron.

Question 15

Neuromodulators

Accepted Answer

A)  are usually amino acids. 
B)  directly elicit postsynaptic potentials. 
C)  are usually found in small vesicles in the axon terminal buttons. 
D)  diffuse widely to affect many neurons. 
E)  mostly involve presynaptic receptors 
A)  are usually amino acids. 
B)  directly elicit postsynaptic potentials. 
C)  are usually found in small vesicles in the axon terminal buttons. 
D)  diffuse widely to affect many neurons. 
E)  mostly involve presynaptic receptors

Question 16

The postsynaptic potentials induced by acetylcholine are ended via

Accepted Answer

A)  disruption of the nicotinic postsynaptic receptor. 
B)  enzymatic degradation via acetylcholinesterase. 
C)  inhibition of acetylcholine synthesis. 
D)  facilitation of acetylcholine release. 
E)  reuptake of acetylcholine. 
A)  disruption of the nicotinic postsynaptic receptor. 
B)  enzymatic degradation via acetylcholinesterase. 
C)  inhibition of acetylcholine synthesis. 
D)  facilitation of acetylcholine release. 
E)  reuptake of acetylcholine.

Question 17

Explain how changes in ion movements can result in an action potential.

Accepted Answer

At rest, the interior of the axon membra

Question 18

The postsynaptic potentials induced by most neurotransmitters are ended by

Accepted Answer

A)  disruption of the postsynaptic receptor. 
B)  enzymatic degradation of the transmitter molecule. 
C)  inhibition of transmitter synthesis. 
D)  facilitation of transmitter release. 
E)  reuptake of the molecule into the axon terminal. 
A)  disruption of the postsynaptic receptor. 
B)  enzymatic degradation of the transmitter molecule. 
C)  inhibition of transmitter synthesis. 
D)  facilitation of transmitter release. 
E)  reuptake of the molecule into the axon terminal.

Question 19

2- A ________ myelinated fiber will conduct action potentials more rapidly than will a thin myelinated fiber.

Accepted Answer

The answer of 2- A ________ myelinated fiber will conduct...

Question 20

The nervous system codes for variation in the intensity of incoming sensory stimuli by variations in the _______ of a neuron.

Accepted Answer

A)  repolarization rate 
B)  resting membrane potential 
C)  speed of conduction of action potentials 
D)  total amplitude of the action potential 
E)  firing rate 
A)  repolarization rate 
B)  resting membrane potential 
C)  speed of conduction of action potentials 
D)  total amplitude of the action potential 
E)  firing rate

2- The process of ________ ensures that ions will distribute themselves evenly through a solvent.

The cell membrane is formed by a dual layer of ________ molecules.

2-________ was the primary symptom shown by Kathryn D.

A drug that specifically killed the _______ cells would be expected to alter the physical and nutritional support of brain cells.

Among the cable properties of axons are the fact that

Which of the following will "neutralize" an EPSP?

The physical gap that carries a neural message between two nerve cells is the

The presence of a barrier between the bloodstream and the brain is suggested by the observation that

A neuron membrane potential moves from -90 mV to -We would term this change in potential as a(n)

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

2- In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Neurotransmitter molecules are most commonly secreted from the

A key function of the _______ nerve cell is to transmit sensory information.

Nerve cells are able to rapidly metabolize fuel because

Neuromodulators

The postsynaptic potentials induced by acetylcholine are ended via

Explain how changes in ion movements can result in an action potential.

The postsynaptic potentials induced by most neurotransmitters are ended by

2- A ________ myelinated fiber will conduct action potentials more rapidly than will a thin myelinated fiber.

The nervous system codes for variation in the intensity of incoming sensory stimuli by variations in the _______ of a neuron.

Introduction

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Control of Movement

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia and the Affective Disorders

Anxiety Disorders, Autistic Disorder, Attention-Deficithyperactivity Disorder, and Stress Disorders

Drug Abuse

Filters

Exam 2: Structure and Function of Cells of the Nervous System

2- The process of ________ ensures that ions will distribute themselves evenly through a solvent.

The cell membrane is formed by a dual layer of ________ molecules.

2-________ was the primary symptom shown by Kathryn D.

A drug that specifically killed the _______ cells would be expected to alter the physical and nutritional support of brain cells.

Among the cable properties of axons are the fact that

Which of the following will "neutralize" an EPSP?

The physical gap that carries a neural message between two nerve cells is the

The presence of a barrier between the bloodstream and the brain is suggested by the observation that

A neuron membrane potential moves from -90 mV to -We would term this change in potential as a(n)

Which of the following events restores the membrane potential from the peak of the action potential back down to the resting level?

2- In a myelinated axon, ions enter or leave the axon membrane only at the ________.

Neurotransmitter molecules are most commonly secreted from the

A key function of the _______ nerve cell is to transmit sensory information.

Nerve cells are able to rapidly metabolize fuel because

Neuromodulators

The postsynaptic potentials induced by acetylcholine are ended via

Explain how changes in ion movements can result in an action potential.

The postsynaptic potentials induced by most neurotransmitters are ended by

2- A ________ myelinated fiber will conduct action potentials more rapidly than will a thin myelinated fiber.

The nervous system codes for variation in the intensity of incoming sensory stimuli by variations in the _______ of a neuron.

Introduction

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Control of Movement

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia and the Affective Disorders

Anxiety Disorders, Autistic Disorder, Attention-Deficithyperactivity Disorder, and Stress Disorders

Drug Abuse

Filters