Question 1

Which of the following is not true of electrical synapses?

Accepted Answer

A)  Current flows in one direction through electrical synapses. 
B)  Electrical synapses are made by the alignment of connexons. 
C)  Electrical synapses are found between cortical neurons. 
D)  Electrical synapses facilitate synchronization. 
A)  Current flows in one direction through electrical synapses. 
B)  Electrical synapses are made by the alignment of connexons. 
C)  Electrical synapses are found between cortical neurons. 
D)  Electrical synapses facilitate synchronization.

Question 2

The sodium-potassium pump forces sodium ions ______ the cell.

Accepted Answer

The answer of The sodium-potassium pump forces sodium ions ______...

Question 3

One function of the ion channels in the neuronal membrane is to

Accepted Answer

A)  selectively allow ions to enter or leave the neuron. 
B)  provide nutrients for the neuron. 
C)  synthesize neurotransmitters. 
D)  form an impermeable barrier. 
A)  selectively allow ions to enter or leave the neuron. 
B)  provide nutrients for the neuron. 
C)  synthesize neurotransmitters. 
D)  form an impermeable barrier.

Question 4

Children with autism spectrum disorder (ASD) maintain excessive direct eye contact with others.

Accepted Answer

A) True 
 B)False

Question 5

_______ would tend to move into the neuron based on both the electrical gradient and concentration gradient.

Accepted Answer

A)  Chloride ions 
B)  Sodium ions 
C)  Potassium ions 
D)  Water 
A)  Chloride ions 
B)  Sodium ions 
C)  Potassium ions 
D)  Water

Question 6

Mirror neurons respond to

Accepted Answer

A)  mirror-reversed images of one's own face. 
B)  the observed actions of others. 
C)  unexpected sounds or sensations. 
D)  emotional facial expressions. 
A)  mirror-reversed images of one's own face. 
B)  the observed actions of others. 
C)  unexpected sounds or sensations. 
D)  emotional facial expressions.

Question 7

The ___________ has a weaker blood-brain barrier to better detect food toxins which may cause illness.

Accepted Answer

A)  amygdala 
B)  pons 
C)  area postrema 
D)  insula 
A)  amygdala 
B)  pons 
C)  area postrema 
D)  insula

Question 8

Kainic acid is a

Accepted Answer

A)  convulsant drug. 
B)  neurotransmitter. 
C)  vitamin. 
D)  second messenger. 
A)  convulsant drug. 
B)  neurotransmitter. 
C)  vitamin. 
D)  second messenger.

Question 9

The exterior of a cell membrane is

Accepted Answer

A)  hydrophobic. 
B)  hydrophillic 
C)  lipophillic. 
D)  impermeable. 
A)  hydrophobic. 
B)  hydrophillic 
C)  lipophillic. 
D)  impermeable.

Question 10

Local anesthetic drugs such as Xylocaine and Novocain work by blocking

Accepted Answer

A)  sodium channels. 
B)  chloride channels. 
C)  potassium channels. 
D)  second messengers. 
A)  sodium channels. 
B)  chloride channels. 
C)  potassium channels. 
D)  second messengers.

Question 11

Which of the statements about neuronal membranes is wrong?

Accepted Answer

A)  They contain specialized ion channels. 
B)  They consist of two layers of phospholipids. 
C)  They are impermeable. 
D)  Their exterior is hydrophillic. 
A)  They contain specialized ion channels. 
B)  They consist of two layers of phospholipids. 
C)  They are impermeable. 
D)  Their exterior is hydrophillic.

Question 12

Which ion has the greatest influence on the resting membrane potential?

Accepted Answer

A)  sodium (Na+) 
B)  calcium (Ca++) 
C)  chloride (Cl-) 
D)  potassium (K+) 
A)  sodium (Na+) 
B)  calcium (Ca++) 
C)  chloride (Cl-) 
D)  potassium (K+)

Question 13

Epilepsy can be treated with pilocarpine.

Accepted Answer

A) True 
 B)False

Question 14

The release of neurotransmitters from the vesicles is known as

Accepted Answer

A)  exocytosis. 
B)  emesis. 
C)  emission. 
D)  excitation. 
A)  exocytosis. 
B)  emesis. 
C)  emission. 
D)  excitation.

Question 15

Which of the following would lead to the fastest excitatory postsynaptic potential (EPSP)?

Accepted Answer

A)  Binding of a neurotransmitter to a ligand-gated channel. 
B)  The activation of a second messenger. 
C)  The inhibition of a G-protein. 
D)  The activation of a chloride (Cl-) channel. 
A)  Binding of a neurotransmitter to a ligand-gated channel. 
B)  The activation of a second messenger. 
C)  The inhibition of a G-protein. 
D)  The activation of a chloride (Cl-) channel.

Question 16

Voltage-gated ion channels open and close in response to ________.

Accepted Answer

A)  Changes in membrane potential. 
B)  The release of neurotransmitter. 
C)  Elevations in adenosine triphosphate (ATP). 
D)  Myelin. 
A)  Changes in membrane potential. 
B)  The release of neurotransmitter. 
C)  Elevations in adenosine triphosphate (ATP). 
D)  Myelin.

Question 17

Voltage-gated ion channels open and close in response to

Accepted Answer

A)  changes in the membrane potential. 
B)  changes in neurotransmitter binding. 
C)  changes in myelin coverage. 
D)  changes in adenosine triphosphate (ATP) levels. 
A)  changes in the membrane potential. 
B)  changes in neurotransmitter binding. 
C)  changes in myelin coverage. 
D)  changes in adenosine triphosphate (ATP) levels.

Question 18

The varying distribution of ions inside and outside of the neuronal membrane determines the

Accepted Answer

A)  electrical gradient. 
B)  concentration gradient. 
C)  repulsion. 
D)  the law of electrostatic repulsion. 
A)  electrical gradient. 
B)  concentration gradient. 
C)  repulsion. 
D)  the law of electrostatic repulsion.

Question 19

The _________________ the axon, the ________________ the action potential.

Accepted Answer

A)  thicker, slower 
B)  thicker, faster 
C)  longer, slower 
D)  thinner, faster 
A)  thicker, slower 
B)  thicker, faster 
C)  longer, slower 
D)  thinner, faster

Question 20

The inside of the cell membrane is ________.

Accepted Answer

A)  Hypdrophilic. 
B)  Hydrophobic. 
C)  Selectively permeable. 
D)  Gated. 
A)  Hypdrophilic. 
B)  Hydrophobic. 
C)  Selectively permeable. 
D)  Gated.

Which of the following is not true of electrical synapses?

The sodium-potassium pump forces sodium ions ______ the cell.

One function of the ion channels in the neuronal membrane is to

Children with autism spectrum disorder (ASD) maintain excessive direct eye contact with others.

_______ would tend to move into the neuron based on both the electrical gradient and concentration gradient.

Mirror neurons respond to

The ___________ has a weaker blood-brain barrier to better detect food toxins which may cause illness.

Kainic acid is a

The exterior of a cell membrane is

Local anesthetic drugs such as Xylocaine and Novocain work by blocking

Which of the statements about neuronal membranes is wrong?

Which ion has the greatest influence on the resting membrane potential?

Epilepsy can be treated with pilocarpine.

The release of neurotransmitters from the vesicles is known as

Which of the following would lead to the fastest excitatory postsynaptic potential (EPSP)?

Voltage-gated ion channels open and close in response to ________.

Voltage-gated ion channels open and close in response to

The varying distribution of ions inside and outside of the neuronal membrane determines the

The _ the axon, the the action potential.

The inside of the cell membrane is ________.

Introduction to Biological Psychology

The Nervous System: Structure and Function

Neurochemistry, Neuropsychopharmacology, and Drug Addiction

Evolving Brains: Neural Development, Neuroplasticity, and Recovery of Function

Sensation, Perception, and Adaptation

Movement

Maintenance and Motivation

Sleep, Wakefulness, and Conscious Awareness

Emotional Expression and Regulation

Affiliative and Reproductive Strategies

Learning, Memory, and Decision Making

Mental Illness

Filters

Exam 3: Cells and Circuits

Which of the following is not true of electrical synapses?

The sodium-potassium pump forces sodium ions ______ the cell.

One function of the ion channels in the neuronal membrane is to

Children with autism spectrum disorder (ASD) maintain excessive direct eye contact with others.

_______ would tend to move into the neuron based on both the electrical gradient and concentration gradient.

Mirror neurons respond to

The ___________ has a weaker blood-brain barrier to better detect food toxins which may cause illness.

Kainic acid is a

The exterior of a cell membrane is

Local anesthetic drugs such as Xylocaine and Novocain work by blocking

Which of the statements about neuronal membranes is wrong?

Which ion has the greatest influence on the resting membrane potential?

Epilepsy can be treated with pilocarpine.

The release of neurotransmitters from the vesicles is known as

Which of the following would lead to the fastest excitatory postsynaptic potential (EPSP)?

Voltage-gated ion channels open and close in response to ________.

Voltage-gated ion channels open and close in response to

The varying distribution of ions inside and outside of the neuronal membrane determines the

The _________________ the axon, the ________________ the action potential.

The inside of the cell membrane is ________.

Introduction to Biological Psychology

The Nervous System: Structure and Function

Neurochemistry, Neuropsychopharmacology, and Drug Addiction

Evolving Brains: Neural Development, Neuroplasticity, and Recovery of Function

Sensation, Perception, and Adaptation

Movement

Maintenance and Motivation

Sleep, Wakefulness, and Conscious Awareness

Emotional Expression and Regulation

Affiliative and Reproductive Strategies

Learning, Memory, and Decision Making

Mental Illness

Filters

The _ the axon, the the action potential.