Pre-Lab
The receptor potential is generated at the _______.
receiving region
secretory region
output region
conducting region
Sensory transduction is defined as _______.
Sensory transduction is defined as _______.
the conversion of a light stimulus into pain
the disappearance of the perception of a stimulus
a change in the amplitude of a receptor potential
the conversion of a stimulus to a change in membrane potential
The receptor potential _______.
The receptor potential _______.
amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
requires the appropriate stimulus
can be graded with stimulus intensity
amplitude can vary with the stimulus intensity
Which of the following describes a depolarization?
Which of the following describes a depolarization?
The membrane, which was formerly not polarized, now is polarized.
The membrane potential becomes more negative.
The membrane potential becomes more polarized.
The membrane becomes less polarized.
Post-Lab
Which of the following was able to detect pressure?
Which of the following was able to detect pressure?
the Pacinian corpuscle and the free nerve ending
free nerve ending
Pacinian corpuscle
olfactory receptor
Which of the following does NOT describe graded potentials?
Which of the following does NOT describe graded potentials?
They are always depolarizing.
They vary with the intensity of the stimulus.
They are local changes.
They are changes to the membrane potential.
Which of the following responded to a chemical stimulus?
Which of the following responded to a chemical stimulus?
both the Pacinian corpuscle and the olfactory receptor
Pacinian corpuscle
free nerve ending
olfactory receptor
When the intensity of the appropriate stimulus was increased, the amplitude of the response _______.
When the intensity of the appropriate stimulus was increased, the amplitude of the response _______.
did not change
was zero
decreased
increased
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