Question 1

A shift of the resting transmembrane potential toward 0 mV is called ________.

Accepted Answer

The answer of A shift of the resting transmembrane potential...

Question 2

Cholinergic synapses release the neurotransmitter

Accepted Answer

A)  norepinephrine. 
B)  adrenalin. 
C)  serotonin. 
D)  acetylcholine. 
E)  GABA. 
A)  norepinephrine. 
B)  adrenalin. 
C)  serotonin. 
D)  acetylcholine. 
E)  GABA.

Question 3

The all-or-none principle states that

Accepted Answer

A)  all stimuli will produce identical action potentials. 
B)  all stimuli great enough to bring the membrane to threshold will produce identical action potentials. 
C)  the greater the magnitude of the stimuli, the greater the magnitude of the action potential. 
D)  only sensory stimuli can activate action potentials. 
E)  only motor stimuli can activate action potentials. 
A)  all stimuli will produce identical action potentials. 
B)  all stimuli great enough to bring the membrane to threshold will produce identical action potentials. 
C)  the greater the magnitude of the stimuli, the greater the magnitude of the action potential. 
D)  only sensory stimuli can activate action potentials. 
E)  only motor stimuli can activate action potentials.

Question 4

The function of the astrocytes in the CNS includes which of the following?

Accepted Answer

A)  adjusting the composition of the interstitial fluid 
B)  providing structural support within neural tissue 
C)  maintaining the blood-brain barrier 
D)  repairing damaged neural tissue 
E)  all of the above 
A)  adjusting the composition of the interstitial fluid 
B)  providing structural support within neural tissue 
C)  maintaining the blood-brain barrier 
D)  repairing damaged neural tissue 
E)  all of the above

Question 5

Which of the following is important in emotional states?

Accepted Answer

A)  glutamate 
B)  gamma aminobutyric acid 
C)  serotonin 
D)  noradrenalin 
E)  glycine 
A)  glutamate 
B)  gamma aminobutyric acid 
C)  serotonin 
D)  noradrenalin 
E)  glycine

Question 6

Figure 11-1 The Neuron
Use Figure 11-1 to answer the following questions:
-The structures labeled "1" are dendrites. Their membranes contain numerous chemically gated ion channels.

Accepted Answer

A)  The first statement is True but the second statement is False
) 
B)  The first statement is False but the second statement is True
) 
C)  Both statements are True . 
D)  Both statements are False . 
E)  Both statements are True and relate to synaptic transmission. 
A)  The first statement is True but the second statement is False
) 
B)  The first statement is False but the second statement is True
) 
C)  Both statements are True . 
D)  Both statements are False . 
E)  Both statements are True and relate to synaptic transmission.

Question 7

Summation that results from the cumulative effect of multiple synapses at multiple places on the neuron is designated

Accepted Answer

A)  spatial summation. 
B)  temporal summation. 
C)  inhibition of the impulse. 
D)  hyperpolarization. 
E)  impulse transmission. 
A)  spatial summation. 
B)  temporal summation. 
C)  inhibition of the impulse. 
D)  hyperpolarization. 
E)  impulse transmission.

Question 8

Which of the following is not a function of the nervous system?

Accepted Answer

A)  sense the internal and external environments 
B)  integrate sensory information 
C)  coordinate voluntary and involuntary activities 
D)  direct long-term functions, such as growth 
E)  control peripheral effectors 
A)  sense the internal and external environments 
B)  integrate sensory information 
C)  coordinate voluntary and involuntary activities 
D)  direct long-term functions, such as growth 
E)  control peripheral effectors

Question 9

Neurons that have several dendrites and a single axon are called

Accepted Answer

A)  anaxonic. 
B)  unipolar. 
C)  bipolar. 
D)  tripolar. 
E)  multipolar. 
A)  anaxonic. 
B)  unipolar. 
C)  bipolar. 
D)  tripolar. 
E)  multipolar.

Question 10

A gated channel that responds to changes in transmembrane potential is called a ________ gated channel.

Accepted Answer

The answer of A gated channel that responds to changes...

Question 11

________ provide information about the external environment.

Accepted Answer

The answer of ________ provide information about the external environment....

Question 12

Figure 11-1 The Neuron
Use Figure 11-1 to answer the following questions:
-Which type of membrane channels are found at label "3"?

Accepted Answer

A)  voltage-gated Na⁺ channels 
B)  voltage-gated K⁺ channels 
C)  chemically gated Na⁺ and K⁺ channels 
D)  voltage-gated Ca²⁺ channels 
E)  voltage-gated Na⁺ and K⁺ channels 
A)  voltage-gated Na⁺ channels 
B)  voltage-gated K⁺ channels 
C)  chemically gated Na⁺ and K⁺ channels 
D)  voltage-gated Ca²⁺ channels 
E)  voltage-gated Na⁺ and K⁺ channels

Question 13

Neurons that are rare, small, and lack features that distinguish dendrites from axons are called

Accepted Answer

A)  anaxonic. 
B)  unipolar. 
C)  bipolar. 
D)  tripolar. 
E)  multipolar. 
A)  anaxonic. 
B)  unipolar. 
C)  bipolar. 
D)  tripolar. 
E)  multipolar.

Question 14

________ are the most numerous type of neuron in the CNS.

Accepted Answer

A)  Sensory neurons 
B)  Motor neurons 
C)  Unipolar neurons 
D)  Bipolar neurons 
E)  Interneurons 
A)  Sensory neurons 
B)  Motor neurons 
C)  Unipolar neurons 
D)  Bipolar neurons 
E)  Interneurons

Question 15

Which of the following are types of neuroglia?

Accepted Answer

A)  ependymal cells 
B)  microglia 
C)  astrocytes 
D)  oligodendrocytes 
E)  all of the above 
A)  ependymal cells 
B)  microglia 
C)  astrocytes 
D)  oligodendrocytes 
E)  all of the above

Question 16

Neurotransmitter for release is stored in synaptic

Accepted Answer

A)  telodendria. 
B)  knobs. 
C)  vesicles. 
D)  mitochondria. 
E)  neurosomes. 
A)  telodendria. 
B)  knobs. 
C)  vesicles. 
D)  mitochondria. 
E)  neurosomes.

Question 17

Ion channels that are always open are called ________ channels.

Accepted Answer

A)  active 
B)  gated 
C)  leak 
D)  regulated 
E)  local 
A)  active 
B)  gated 
C)  leak 
D)  regulated 
E)  local

Question 18

The smallest neuroglia of the CNS that act as phagocytes are the

Accepted Answer

A)  astrocytes. 
B)  ependymal cells. 
C)  microglia. 
D)  oligodendrocytes. 
E)  none of the above 
A)  astrocytes. 
B)  ependymal cells. 
C)  microglia. 
D)  oligodendrocytes. 
E)  none of the above

Question 19

An action potential traveling along the entire length of an axon demonstrates ________ propagation.

Accepted Answer

The answer of An action potential traveling along the entire...

Question 20

How would the absolute refractory period be affected if voltage-regulated sodium channels failed to inactivate?

Accepted Answer

A)  It would last indefinitely. 
B)  It would be much briefer. 
C)  It would be basically unaffected. 
A)  It would last indefinitely. 
B)  It would be much briefer. 
C)  It would be basically unaffected.

Exam 11: Neural Tissue

A shift of the resting transmembrane potential toward 0 mV is called ________.

Cholinergic synapses release the neurotransmitter

The all-or-none principle states that

The function of the astrocytes in the CNS includes which of the following?

Which of the following is important in emotional states?

Figure 11-1 The Neuron Use Figure 11-1 to answer the following questions: -The structures labeled "1" are dendrites. Their membranes contain numerous chemically gated ion channels.

Summation that results from the cumulative effect of multiple synapses at multiple places on the neuron is designated

Which of the following is not a function of the nervous system?

Neurons that have several dendrites and a single axon are called

A gated channel that responds to changes in transmembrane potential is called a ________ gated channel.

________ provide information about the external environment.

Figure 11-1 The Neuron Use Figure 11-1 to answer the following questions: -Which type of membrane channels are found at label "3"?

Neurons that are rare, small, and lack features that distinguish dendrites from axons are called

________ are the most numerous type of neuron in the CNS.

Which of the following are types of neuroglia?

Neurotransmitter for release is stored in synaptic

Ion channels that are always open are called ________ channels.

The smallest neuroglia of the CNS that act as phagocytes are the

An action potential traveling along the entire length of an axon demonstrates ________ propagation.

How would the absolute refractory period be affected if voltage-regulated sodium channels failed to inactivate?

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Cellular Level of Organization

Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Skeletal Muscle Tissue

The Muscular System

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood and Blood Vessels

The Heart and Cardiovascular Function

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters