SLP 261 Chapter 12 Exam
With Complete Solution
Which of the following provides the energy source for speech?
a. Respiratory system
b. Phonatory system
c. Articulatory/resonatory
d. Nervous system - ANSWER a. Respiratory system
The point of communication between two neurons is the:
a. telodendria
b. synapse
c. end bouton
d. cell body - ANSWER b. synapse
The electrical charge gradient across a membrane is termed:
a. transport gradient
b. permeability gradient
c. concentration gradient
d. electrochemical gradient - ANSWER d. electrochemical gradient
____ are atoms that have lost or gained an electron.
a. Ions
b. Neutrons
c. Protrons
d. Prions - ANSWER a. Ions
When charged particles move, a/an ________ is generated.
a. electrical current
, b. ion field
c. permeable membrane
d. force field - ANSWER a. electrical current
Voltage-sensitive ion channels:
a. are involved in saltatory conduction
b. open in the presence of a current
c. require neurotransmitter
d. utilize the end boutons - ANSWER ANS: A and B
____________ is a change in electrical potential that occurs when the cell membrane
is stimulated adequately to permit ion exchange between intra- and extracellular
spaces.
a. Action potential
b. Resting potential
c. Quantum potential
d. Sodium potential - ANSWER a. Action potential
The period during which a neuron cannot be stimulated to discharge is termed
_____________.
a. relatively refractory period
b. stimulation period
c. de-activation period
d. absolute refractory period - ANSWER d. absolute refractory period
Voltage sensitive channels found in the nodes of Ranvier are utilized during:
a. impedance matching
b. the relative refractory period
c. the absolutely refractory period
d. saltatory conduction - ANSWER d. saltatory conduction
This neurotransmitter is found at the neuromuscular junction.
With Complete Solution
Which of the following provides the energy source for speech?
a. Respiratory system
b. Phonatory system
c. Articulatory/resonatory
d. Nervous system - ANSWER a. Respiratory system
The point of communication between two neurons is the:
a. telodendria
b. synapse
c. end bouton
d. cell body - ANSWER b. synapse
The electrical charge gradient across a membrane is termed:
a. transport gradient
b. permeability gradient
c. concentration gradient
d. electrochemical gradient - ANSWER d. electrochemical gradient
____ are atoms that have lost or gained an electron.
a. Ions
b. Neutrons
c. Protrons
d. Prions - ANSWER a. Ions
When charged particles move, a/an ________ is generated.
a. electrical current
, b. ion field
c. permeable membrane
d. force field - ANSWER a. electrical current
Voltage-sensitive ion channels:
a. are involved in saltatory conduction
b. open in the presence of a current
c. require neurotransmitter
d. utilize the end boutons - ANSWER ANS: A and B
____________ is a change in electrical potential that occurs when the cell membrane
is stimulated adequately to permit ion exchange between intra- and extracellular
spaces.
a. Action potential
b. Resting potential
c. Quantum potential
d. Sodium potential - ANSWER a. Action potential
The period during which a neuron cannot be stimulated to discharge is termed
_____________.
a. relatively refractory period
b. stimulation period
c. de-activation period
d. absolute refractory period - ANSWER d. absolute refractory period
Voltage sensitive channels found in the nodes of Ranvier are utilized during:
a. impedance matching
b. the relative refractory period
c. the absolutely refractory period
d. saltatory conduction - ANSWER d. saltatory conduction
This neurotransmitter is found at the neuromuscular junction.
