Question 1

______neurons are short, with a cell body between dendrite and axon, and occur in special sense organs.

Accepted Answer

A)  Anaxonic 
B)  Multipolar 
C)  Bipolar 
D)  Unipolar 
E)  none of the above 
A)  Anaxonic 
B)  Multipolar 
C)  Bipolar 
D)  Unipolar 
E)  none of the above C

Question 2

Active neurons need ATP to support which of the following?

Accepted Answer

A)  the recovery from action potentials 
B)  the movement of materials to the soma by axoplasmic transport 
C)  the synthesis of neurotransmitter molecules 
D)  the movement of materials from the soma by axoplasmic transport 
E)  all of the above 
A)  the recovery from action potentials 
B)  the movement of materials to the soma by axoplasmic transport 
C)  the synthesis of neurotransmitter molecules 
D)  the movement of materials from the soma by axoplasmic transport 
E)  all of the above E

Question 3

After a stroke, what type of glial cell accumulates within the affected brain region?

Accepted Answer

A)  astrocytes 
B)  satellite cells 
C)  microglia 
D)  oligodendrocytes 
E)  ependymal cells 
A)  astrocytes 
B)  satellite cells 
C)  microglia 
D)  oligodendrocytes 
E)  ependymal cells C

Question 4

The axoplasm of the axon contains which of the following?

Accepted Answer

A)  vesicles 
B)  neurotubules 
C)  mitochondria 
D)  neurofibrils 
E)  all of the above 
A)  vesicles 
B)  neurotubules 
C)  mitochondria 
D)  neurofibrils 
E)  all of the above

Question 5

Small, wandering cells that engulf cell debris and pathogens in the CNS are called

Accepted Answer

A)  ependymal cells. 
B)  microglia. 
C)  satellite cells. 
D)  astrocytes. 
E)  oligodendrocytes. 
A)  ependymal cells. 
B)  microglia. 
C)  satellite cells. 
D)  astrocytes. 
E)  oligodendrocytes.

Question 6

Which of the following is not a function of the neuroglia?

Accepted Answer

A)  support 
B)  maintenance of blood- brain barrier 
C)  memory 
D)  phagocytosis 
E)  secretion of cerebrospinal fluid 
A)  support 
B)  maintenance of blood- brain barrier 
C)  memory 
D)  phagocytosis 
E)  secretion of cerebrospinal fluid

Question 7

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-Which area of the graph shows when membrane potential approaches the potassium equilibrium potential?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 8

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-If the sodium- potassium pumps in the plasma membrane fail to function, all of the following occur, except

Accepted Answer

A)  the membrane will slowly lose its capacity to generate action potentials. 
B)  the intracellular concentration of sodium ions will increase. 
C)  the intracellular concentration of potassium ions will increase. 
D)  the neuron will slowly depolarize. 
E)  the inside of the membrane will have a resting potential that is more positive than normal. 
A)  the membrane will slowly lose its capacity to generate action potentials. 
B)  the intracellular concentration of sodium ions will increase. 
C)  the intracellular concentration of potassium ions will increase. 
D)  the neuron will slowly depolarize. 
E)  the inside of the membrane will have a resting potential that is more positive than normal.

Question 9

Neurons that have one axon and one dendrite, with the soma in between, are called

Accepted Answer

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

Question 10

The basic functional unit of the nervous system are cells called____________

Accepted Answer

The answer of The basic functional unit of the nervous...

Question 11

The presence of__________ dramatically increases the speed at which an action potential moves along an axon.

Accepted Answer

The answer of The presence of__________ dramatically increases the speed...

Question 12

The buildup of depolarization when EPSPs arrive at several places on the neuron is called___________summation.

Accepted Answer

The answer of The buildup of depolarization when EPSPs arrive...

Question 13

________are nerves that connect to the spinal cord

Accepted Answer

The answer of ________are nerves that connect to the spinal...

Question 14

Which of the following is not involved in creating the resting potential of a neuron?

Accepted Answer

A)  The interior of the plasma membrane has an excess of negative charges. 
B)  membrane permeability for sodium ions greater than potassium ions 
C)  diffusion of sodium ions into the cell 
D)  diffusion of potassium ions out of the cell 
E)  membrane permeability for potassium ions greater than sodium ions 
A)  The interior of the plasma membrane has an excess of negative charges. 
B)  membrane permeability for sodium ions greater than potassium ions 
C)  diffusion of sodium ions into the cell 
D)  diffusion of potassium ions out of the cell 
E)  membrane permeability for potassium ions greater than sodium ions

Question 15

Which of the following does not influence the time necessary for a nerve impulse to be transmitted?

Accepted Answer

A)  presence or absence of a myelin sheath 
B)  length of the axon 
C)  whether or not the impulse begins in the CNS 
D)  diameter of the axon 
E)  presence or absence of nodes 
A)  presence or absence of a myelin sheath 
B)  length of the axon 
C)  whether or not the impulse begins in the CNS 
D)  diameter of the axon 
E)  presence or absence of nodes

Question 16

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-Which point of the graph shows when potassium ion outflow exceeds sodium ion inflow?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 17

The axon is connected to the soma at the

Accepted Answer

A)  axon hillock. 
B)  synapse. 
C)  synaptic knobs. 
D)  collaterals. 
E)  telodendria. 
A)  axon hillock. 
B)  synapse. 
C)  synaptic knobs. 
D)  collaterals. 
E)  telodendria.

Question 18

Glial cells that surround the neurons in ganglia are

Accepted Answer

A)  satellite cells. 
B)  astrocytes. 
C)  ependymal cells. 
D)  oligodendrocytes. 
E)  microglia. 
A)  satellite cells. 
B)  astrocytes. 
C)  ependymal cells. 
D)  oligodendrocytes. 
E)  microglia.

Question 19

The same______can have different effects depending on the properties of the_________ .

Accepted Answer

A)  substrate; receptor 
B)  hormone; neurotransmitter 
C)  propagation; neurotransmitter 
D)  neurotransmitter; receptor 
E)  receptor; neurotransmitter 
A)  substrate; receptor 
B)  hormone; neurotransmitter 
C)  propagation; neurotransmitter 
D)  neurotransmitter; receptor 
E)  receptor; neurotransmitter

Question 20

Any stimulus that opens ion channel will produce a graded potential.

Accepted Answer

A)  a mechanically gated 
B)  a sodium 
C)  a chemically gated 
D)  a voltage- gated 
E)  any of the above 
A)  a mechanically gated 
B)  a sodium 
C)  a chemically gated 
D)  a voltage- gated 
E)  any of the above

Exam 11: Neural Tissue

______neurons are short, with a cell body between dendrite and axon, and occur in special sense organs.

Active neurons need ATP to support which of the following?

After a stroke, what type of glial cell accumulates within the affected brain region?

The axoplasm of the axon contains which of the following?

Small, wandering cells that engulf cell debris and pathogens in the CNS are called

Which of the following is not a function of the neuroglia?

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -Which area of the graph shows when membrane potential approaches the potassium equilibrium potential?

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -If the sodium- potassium pumps in the plasma membrane fail to function, all of the following occur, except

Neurons that have one axon and one dendrite, with the soma in between, are called

The basic functional unit of the nervous system are cells called____________

The presence of__________ dramatically increases the speed at which an action potential moves along an axon.

The buildup of depolarization when EPSPs arrive at several places on the neuron is called___________summation.

________are nerves that connect to the spinal cord

Which of the following is not involved in creating the resting potential of a neuron?

Which of the following does not influence the time necessary for a nerve impulse to be transmitted?

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -Which point of the graph shows when potassium ion outflow exceeds sodium ion inflow?

The axon is connected to the soma at the

Glial cells that surround the neurons in ganglia are

The same______can have different effects depending on the properties of the_________ .

Any stimulus that opens ion channel will produce a graded potential.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Muscle Tissue

The Muscular System

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphoid System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Filters

The samecan have different effects depending on the properties of the___ .