Question 1

A neuron receives a stimulus.Which of the following events happens next?

Accepted Answer

A)  A local potential develops
B)  Threshold is reached
C)  Hyperpolarization of the membrane
D)  Repolarization of the membrane
E)  A resting membrane potential is establishedF) A) and C)
G) A) and D)

Question 2

How does a neuron transport enzymes produced in the soma to its axon terminals?

Accepted Answer

A)  Along microtubules
B)  By diffusion
C)  Via cytoplasmic streaming
D)  Through co-transportE) A) and D)
F) C) and D)

Question 3

A traveling wave of excitation is known as a(n) __________.

Accepted Answer

A)  local potential
B)  graded potential
C)  action potential
D)  nerve signal
E)  depolarizing signalF) A) and D)
G) All of the above

Question 4

Accumulation of Ca2+ in the synaptic knob is called __________,and probably plays an important role in __________.

Accepted Answer

A)  synaptic facilitation; short-term memory
B)  neural coding; immediate memory
C)  postsynaptic potential; long-term memory
D)  neural coding; short-term memory
E)  long-term potentiation; long-term memoryF) A) and E)
G) B) and D)

Question 5

If the potassium leak channels were suddenly blocked in a resting neuron,what would happen to its resting membrane potential?

Accepted Answer

A)  It would become more positive.
B)  It would become more negative.
C)  The RMP would be unaffected.
D)  It would hyperpolarize.E) All of the above
F) A) and D)

Question 6

What is the primary site on a neuron for receiving signals from other neurons?

Accepted Answer

A)  The synaptic knobs
B)  The axons
C)  The axon collaterals
D)  The somas
E)  The dendritesF) A) and B)
G) A) and C)

Question 7

The opening of __________ gates produces an __________.

Accepted Answer

A)  chloride; IPSP
B)  sodium; IPSP
C)  calcium; IPSP
D)  potassium; EPSP
E)  calcium and sodium; IPSPF) B) and E)
G) C) and D)

Question 8

What is the most common type of neuron?

Accepted Answer

A)  Multipolar
B)  Bipolar
C)  Unipolar
D)  Anaxonic
E)  DendriticF) B) and E)
G) A) and B)

Question 9

When the voltage of a plasma membrane shifts from +35mV towards 0 mV,the cell is __________.

Accepted Answer

A)  depolarizing
B)  repolarizing
C)  hyperpolarizing
D)  reaching the threshold
E)  exiting the thresholdF) C) and D)
G) All of the above

Question 10

Place the following events of synaptic transmission at an adrenergic synapse in order: A - ATP is converted to cAMP B - The cell's metabolism is altered C - G protein binds adenylate cylase D - The G protein dissociates E - NE binds the receptor

Accepted Answer

A)  E, D, C, A, B
B)  E, D, A, C, B
C)  D, E, C, A, B
D)  D, E, A, C, BE) A) and C)
F) All of the above

Question 11

The __________ division tends to prepare the body for action.

Accepted Answer

A)  sensory afferent
B)  motor afferent
C)  somatic motor
D)  parasympathetic
E)  sympatheticF) D) and E)
G) B) and E)

Question 12

What is the most common inhibitory neurotransmitter in the brain?

Accepted Answer

A)   γ\gammaγ -aminobutyric acid (GAB
A)  
B)  Noradrenaline
C)  Epinephrine
D)  Acetylcholine
E)  Norepinephrine F) D) and E)
G) B) and E)

Question 13

Even though all action potentials are the same,the brain can differentiate a variety of stimuli by source and intensity.The mechanism by which the nervous system converts these action potentials into meaningful information is called neural __________.

Accepted Answer

A)  recruitment
B)  pooling
C)  integration
D)  facilitation
E)  codingF) A) and B)
G) All of the above

Question 14

The nervous system employs exclusively electrical means to send messages,whereas the endocrine system communicates by means of chemical messengers.

Accepted Answer

A) True 
 B)False

Question 15

Conduction of a nerve impulse would be the fastest in which of the following?

Accepted Answer

A)  A large diameter myelinated fiber
B)  A small diameter myelinated fiber
C)  A large unmyelinated fiber
D)  A small unmyelinated fiber
E)  A small fiber with multiple Schwann cellsF) All of the above
G) None of the above

Question 16

While both systems maintain homeostasis,how does the nervous system differ from the endocrine system?

Accepted Answer

A)  The nervous system releases neurotransmitters between cells, while the endocrine system releases hormones into the blood.
B)  The nervous system releases neurotransmitters into the blood, while the endocrine system releases hormones between cells.
C)  The nervous system releases hormones between cells, while the endocrine system releases neurotransmitters into the blood.
D)  The nervous system releases hormones into the blood, while the endocrine system releases neurotransmitters between cells.E) B) and C)
F) None of the above

Question 17

A neuron can receive thousands of EPSPs from different neurons,and responds by triggering or not triggering an action potential.This addition and response to the net effect of postsynaptic potentials is called __________.

Accepted Answer

A)  temporal summation
B)  neural summation
C)  spatial summation
D)  neuronal coding
E)  recruitmentF) B) and C)
G) B) and D)

Exam 12: Nervous Tissue

Accumulation of Ca²⁺ in the synaptic knob is called ,and probably plays an important role in .

Correct Answer
verified

A neuron can receive thousands of EPSPs from different neurons,and responds by triggering or not triggering an action potential.This addition and response to the net effect of postsynaptic potentials is called __________.

Correct Answer
verified

If the potassium leak channels were suddenly blocked in a resting neuron,what would happen to its resting membrane potential?

Correct Answer
verified

Place the following events of synaptic transmission at an adrenergic synapse in order: A - ATP is converted to cAMP B - The cell's metabolism is altered C - G protein binds adenylate cylase D - The G protein dissociates E - NE binds the receptor

Correct Answer
verified

How does a neuron transport enzymes produced in the soma to its axon terminals?

Correct Answer
verified

Even though all action potentials are the same,the brain can differentiate a variety of stimuli by source and intensity.The mechanism by which the nervous system converts these action potentials into meaningful information is called neural __________.

Correct Answer
verified

When the voltage of a plasma membrane shifts from +35mV towards 0 mV,the cell is __________.

Correct Answer
verified

The nervous system employs exclusively electrical means to send messages,whereas the endocrine system communicates by means of chemical messengers.

Correct Answer
verified

The opening of gates produces an .

Correct Answer
verified

What is the most common type of neuron?

Correct Answer
verified

What is the primary site on a neuron for receiving signals from other neurons?

Correct Answer
verified

A traveling wave of excitation is known as a(n) __________.

Correct Answer
verified

A neuron receives a stimulus.Which of the following events happens next?

Correct Answer
verified

The __________ division tends to prepare the body for action.

Correct Answer
verified

While both systems maintain homeostasis,how does the nervous system differ from the endocrine system?

Correct Answer
verified

Conduction of a nerve impulse would be the fastest in which of the following?

Correct Answer
verified

What is the most common inhibitory neurotransmitter in the brain?

Correct Answer
verified

Exam 12: Nervous Tissue

Accumulation of Ca2+ in the synaptic knob is called __________,and probably plays an important role in __________.

Correct AnswerverifiedShow Answer

A neuron can receive thousands of EPSPs from different neurons,and responds by triggering or not triggering an action potential.This addition and response to the net effect of postsynaptic potentials is called __________.

Correct AnswerverifiedShow Answer

If the potassium leak channels were suddenly blocked in a resting neuron,what would happen to its resting membrane potential?

Correct AnswerverifiedShow Answer

Place the following events of synaptic transmission at an adrenergic synapse in order: A - ATP is converted to cAMP B - The cell's metabolism is altered C - G protein binds adenylate cylase D - The G protein dissociates E - NE binds the receptor

Correct AnswerverifiedShow Answer

How does a neuron transport enzymes produced in the soma to its axon terminals?

Correct AnswerverifiedShow Answer

Even though all action potentials are the same,the brain can differentiate a variety of stimuli by source and intensity.The mechanism by which the nervous system converts these action potentials into meaningful information is called neural __________.

Correct AnswerverifiedShow Answer

When the voltage of a plasma membrane shifts from +35mV towards 0 mV,the cell is __________.

Correct AnswerverifiedShow Answer

The nervous system employs exclusively electrical means to send messages,whereas the endocrine system communicates by means of chemical messengers.

Correct AnswerverifiedShow Answer

The opening of __________ gates produces an __________.

Correct AnswerverifiedShow Answer

What is the most common type of neuron?

Correct AnswerverifiedShow Answer

What is the primary site on a neuron for receiving signals from other neurons?

Correct AnswerverifiedShow Answer

A traveling wave of excitation is known as a(n) __________.

Correct AnswerverifiedShow Answer

A neuron receives a stimulus.Which of the following events happens next?

Correct AnswerverifiedShow Answer

The __________ division tends to prepare the body for action.

Correct AnswerverifiedShow Answer

While both systems maintain homeostasis,how does the nervous system differ from the endocrine system?

Correct AnswerverifiedShow Answer

Conduction of a nerve impulse would be the fastest in which of the following?

Correct AnswerverifiedShow Answer

What is the most common inhibitory neurotransmitter in the brain?

Correct AnswerverifiedShow Answer

Accumulation of Ca²⁺ in the synaptic knob is called ,and probably plays an important role in .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The opening of gates produces an .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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