Question 1

Prevalent in the cytoplasm of most terminal buttons are

Accepted Answer

A)  ribosomes. 
B)  mitochondria. 
C)  synaptic vesicles. 
D)  all of the above 
E)  both B and C 
A)  ribosomes. 
B)  mitochondria. 
C)  synaptic vesicles. 
D)  all of the above 
E)  both B and C

Question 2

EPSPs are

Accepted Answer

A)  graded responses. 
B)  postsynaptic responses. 
C)  transmitted decrementally. 
D)  depolarizations. 
E)  all of the above 
A)  graded responses. 
B)  postsynaptic responses. 
C)  transmitted decrementally. 
D)  depolarizations. 
E)  all of the above

Question 3

Nondirected synapses

Accepted Answer

A)  involve the release of neurotransmitter molecules diffusely into the extracellular fluid. 
B)  are sometimes string-of-beads synapses. 
C)  involve the movement of neurotransmitter molecules across gap junctions. 
D)  both A and B 
E)  both B and C 
A)  involve the release of neurotransmitter molecules diffusely into the extracellular fluid. 
B)  are sometimes string-of-beads synapses. 
C)  involve the movement of neurotransmitter molecules across gap junctions. 
D)  both A and B 
E)  both B and C

Question 4

-Which of the following are considered to be small-molecule neurotransmitters?

Accepted Answer

A)  neuropeptide transmitters 
B)  monoamine neurotransmitters 
C)  amino acid neurotransmitters 
D)  both A and B 
E)  both B and C 
A)  neuropeptide transmitters 
B)  monoamine neurotransmitters 
C)  amino acid neurotransmitters 
D)  both A and B 
E)  both B and C

Question 5

Monoamines are divided into two groups:

Accepted Answer

A)  amino acids and peptides. 
B)  peptides and proteins. 
C)  catecholamines and indolamines. 
D)  peptides and polypeptides. 
E)  catecholamines and dopamine. 
A)  amino acids and peptides. 
B)  peptides and proteins. 
C)  catecholamines and indolamines. 
D)  peptides and polypeptides. 
E)  catecholamines and dopamine.

Question 6

Once released, neurotransmitter molecules typically produce signals in postsynaptic neurons by

Accepted Answer

A)  binding to presynaptic receptors. 
B)  binding to postsynaptic receptors. 
C)  entering postsynaptic neurons. 
D)  binding directly to calcium ions. 
E)  attaching to vesicles. 
A)  binding to presynaptic receptors. 
B)  binding to postsynaptic receptors. 
C)  entering postsynaptic neurons. 
D)  binding directly to calcium ions. 
E)  attaching to vesicles.

Question 7

Pump mechanisms in the cell membrane of neurons pump __________ ions out of the neuron.

Accepted Answer

The answer of Pump mechanisms in the cell membrane of...

Question 8

"Reptilian stare" is sometimes used to describe the widely opened, unblinking eyes and motionless face of

Accepted Answer

A)  Parkinson's disease. 
B)  multiple sclerosis. 
C)  old age. 
D)  infancy. 
E)  Alzheimer's disease. 
A)  Parkinson's disease. 
B)  multiple sclerosis. 
C)  old age. 
D)  infancy. 
E)  Alzheimer's disease.

Question 9

With respect to size, neuropeptides are the __________ neurotransmitters.

Accepted Answer

The answer of With respect to size, neuropeptides are the...

Question 10

Acetylcholine is

Accepted Answer

A)  a large-molecule neurotransmitter. 
B)  synthesized by adding an acetyl group to a choline molecule. 
C)  an indolamine. 
D)  all of the above 
E)  both B and C 
A)  a large-molecule neurotransmitter. 
B)  synthesized by adding an acetyl group to a choline molecule. 
C)  an indolamine. 
D)  all of the above 
E)  both B and C

Question 11

Second messengers

Accepted Answer

A)  are synthesized in response to activation of metabotropic receptors. 
B)  can influence metabolic activities of the cell. 
C)  can induce IPSPs or EPSPs. 
D)  can bind to DNA to influence protein synthesis. 
E)  all of the above 
A)  are synthesized in response to activation of metabotropic receptors. 
B)  can influence metabolic activities of the cell. 
C)  can induce IPSPs or EPSPs. 
D)  can bind to DNA to influence protein synthesis. 
E)  all of the above

Question 12

EPSPS are conducted passively, rapidly, and __________.

Accepted Answer

The answer of EPSPS are conducted passively, rapidly, and __________....

Question 13

Which of the following is not found in neurons that release norepinephrine?

Accepted Answer

A)  dopamine 
B)  L-DOPA 
C)  norepinephrine 
D)  epinephrine 
E)  tyrosine 
A)  dopamine 
B)  L-DOPA 
C)  norepinephrine 
D)  epinephrine 
E)  tyrosine

Question 14

Explain how an action potential is conducted along a myelinated axon.Why is conduction more rapid in a myelinated axon than in an unmyelinated axon? At what speed does axonal conduction occur in various kinds of axons?

Accepted Answer

50% for explaining the mechani

Question 15

Which of the following is a cholinergic antagonist?

Accepted Answer

A)  curare 
B)  Valium 
C)  THC 
D)  all of the above 
E)  both B and C 
A)  curare 
B)  Valium 
C)  THC 
D)  all of the above 
E)  both B and C

Question 16

Neurotransmitters are often stored in

Accepted Answer

A)  aluminum foil. 
B)  ribosomes. 
C)  vesicles. 
D)  nodes of Ranvier. 
E)  the synaptic cleft. 
A)  aluminum foil. 
B)  ribosomes. 
C)  vesicles. 
D)  nodes of Ranvier. 
E)  the synaptic cleft.

Question 17

The first event in the generation of an action potential is the opening of __________- activated sodium channels.

Accepted Answer

The answer of The first event in the generation of...

Question 18

Contributing to the unequal distribution of ions on either side of a resting neural membrane

Accepted Answer

A)  is random ion movement. 
B)  are electrostatic gradients. 
C)  are sodium-potassium pumps. 
D)  both A and B 
E)  both B and C 
A)  is random ion movement. 
B)  are electrostatic gradients. 
C)  are sodium-potassium pumps. 
D)  both A and B 
E)  both B and C

Question 19

Which of the following is an endocannabinoid?

Accepted Answer

A)  nitric oxide 
B)  aspartate 
C)  anandamide 
D)  THC 
E)  indolamine 
A)  nitric oxide 
B)  aspartate 
C)  anandamide 
D)  THC 
E)  indolamine

Question 20

During an action potential, the change in membrane potential associated with the influx of sodium ions triggers the

Accepted Answer

A)  opening of sodium channels. 
B)  closing of chloride channels. 
C)  opening of chloride channels. 
D)  closing of potassium channels. 
E)  opening of potassium channels. 
A)  opening of sodium channels. 
B)  closing of chloride channels. 
C)  opening of chloride channels. 
D)  closing of potassium channels. 
E)  opening of potassium channels.

Prevalent in the cytoplasm of most terminal buttons are

EPSPs are

Nondirected synapses

-Which of the following are considered to be small-molecule neurotransmitters?

Monoamines are divided into two groups:

Once released, neurotransmitter molecules typically produce signals in postsynaptic neurons by

Pump mechanisms in the cell membrane of neurons pump __________ ions out of the neuron.

"Reptilian stare" is sometimes used to describe the widely opened, unblinking eyes and motionless face of

With respect to size, neuropeptides are the __________ neurotransmitters.

Acetylcholine is

Second messengers

EPSPS are conducted passively, rapidly, and __________.

Which of the following is not found in neurons that release norepinephrine?

Explain how an action potential is conducted along a myelinated axon.Why is conduction more rapid in a myelinated axon than in an unmyelinated axon? At what speed does axonal conduction occur in various kinds of axons?

Which of the following is a cholinergic antagonist?

Neurotransmitters are often stored in

The first event in the generation of an action potential is the opening of __________- activated sodium channels.

Contributing to the unequal distribution of ions on either side of a resting neural membrane

Which of the following is an endocannabinoid?

During an action potential, the change in membrane potential associated with the influx of sodium ions triggers the

Biopsychology As a Neuroscience

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Exam 4: Neural Conduction and Synaptic Transmission

Prevalent in the cytoplasm of most terminal buttons are

EPSPs are

Nondirected synapses

-Which of the following are considered to be small-molecule neurotransmitters?

Monoamines are divided into two groups:

Once released, neurotransmitter molecules typically produce signals in postsynaptic neurons by

Pump mechanisms in the cell membrane of neurons pump __________ ions out of the neuron.

"Reptilian stare" is sometimes used to describe the widely opened, unblinking eyes and motionless face of

With respect to size, neuropeptides are the __________ neurotransmitters.

Acetylcholine is

Second messengers

EPSPS are conducted passively, rapidly, and __________.

Which of the following is not found in neurons that release norepinephrine?

Explain how an action potential is conducted along a myelinated axon.Why is conduction more rapid in a myelinated axon than in an unmyelinated axon? At what speed does axonal conduction occur in various kinds of axons?

Which of the following is a cholinergic antagonist?

Neurotransmitters are often stored in

The first event in the generation of an action potential is the opening of __________- activated sodium channels.

Contributing to the unequal distribution of ions on either side of a resting neural membrane

Which of the following is an endocannabinoid?

During an action potential, the change in membrane potential associated with the influx of sodium ions triggers the

Biopsychology As a Neuroscience

Evolution, Genetics, and Experience

The Anatomy of the Nervous System

The Research Methods of Biopsychology

The Visual System

Mechanisms of Perception

The Sensorimotor System

Development of the Nervous System

Brain Damage and Neuroplasticity

Learning, Memory, and Amnesia

Hunger, Eating, and Health

Hormones and Sex

Sleep, Dreaming, and Circadian Rhythms

Drug Addiction and the Brains Reward Circuits

Lateralization, Language, and the Split Brain

Biopsychology of Emotion, Stress, and Health

Biopsychology of Psychiatric Disorders

Filters