The rate with which an action potential travels along an axon _______.- is measured in meters/sec- is called the conduction velocity- is called the conduction velocity and is measured in volts/sec- is measured in volts/sec- is called the conduction velocity and is measured in meters/sec
  • is called the conduction velocity and is measured in meters/sec
  • a receptor potential, a synaptic potential or an action potential
  • - lower than potassium intracellularly.
  • amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
The typical concentration of sodium is _______.- the same as potassium intracellularly.- lower than potassium extracellularly.- lower than potassium intracellularly.- higher than potassium intracellularly.
  • a receptor potential, a synaptic potential or an action potential
  • - lower than potassium intracellularly.
  • leakage channels and voltage-gated potassium channels
  • is called the conduction velocity and is measured in meters/sec
We describe the regeneration of the action potential down the membrane of the axon of the neuron as _______.hyperpolarizationconduction or propagationconductionpropagation
  • conduction or propagation
  • lidocaine was applied downstream of R1
  • An action potential was always seen at R1.
  • sodium-potassium pump
An action potential requires _______.- voltage-gated sodium channels to open- sodium to flow with its electrochemical gradient- chemically gated sodium channels to open- voltage-gated sodium channels to open and sodium to flow with its electrochemical gradient
  • is called the conduction velocity and is measured in meters/sec
  • voltage-gated sodium channels to open and sodium to flow with its electrochemical gradient
  • leakage channels and voltage-gated potassium channels
  • amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
The frequency of action potentials is _______.- measured in hertz, and the same as the relative refractory period- the reciprocal of the interspike interval, and measured in hertz- the same as the relative refractory period- the reciprocal of the interspike interval- measured in hertz
  • - the conversion of a stimulus to a change in membrane potential
  • leakage channels and voltage-gated potassium channels
  • - the reciprocal of the interspike interval, and measured in hertz
  • amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
In this activity, the stimulus voltage used was _______.- altered to accommodate the structural differences- the same for all of the axons- suprathreshold for all of the axons- the same for all of the axons and suprathreshold for all of the axons
  • more action potentials to occur, the absolute refractory period to finish and the relative refractory period to finish
  • the same for all of the axons and suprathreshold for all of the axons
  • leakage channels and voltage-gated potassium channels
  • is called the conduction velocity and is measured in meters/sec
The receptor potential _______.- can be graded with stimulus intensity- amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity- amplitude can vary with the stimulus intensity- requires the appropriate stimulus
  • voltage-gated sodium channels to open and sodium to flow with its electrochemical gradient
  • amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
  • is called the conduction velocity and is measured in meters/sec
  • a greater-than-threshold depolarization results and sodium permeability into the cell increases to overcome the potassium exiting
Sensory transduction is defined as _______.- the conversion of a stimulus to a change in membrane potential- the disappearance of the perception of a stimulus- the conversion of a light stimulus into pain- a change in the amplitude of a receptor potential
  • - the conversion of a stimulus to a change in membrane potential
  • - the reciprocal of the interspike interval, and measured in hertz
  • more action potentials to occur, the absolute refractory period to finish and the relative refractory period to finish
  • It would change the membrane potential to a more negative value.
Which of the following allow the movement of potassium through the neuronal membrane?simple diffusionleakage channelsleakage channels and voltage-gated potassium channelsvoltage-gated potassium channels
  • the Pacinian corpuscle and the free nerve ending
  • The receptor potential is carried by neuroglia.
  • An action potential was always seen at R1.
  • leakage channels and voltage-gated potassium channels
Which of the following describes a change from the resting membrane potential?- an action potential- a synaptic potential- a receptor potential- a receptor potential, a synaptic potential or an action potential
  • the Pacinian corpuscle and the free nerve ending
  • a receptor potential, a synaptic potential or an action potential
  • Schwann cells provide the myelination in the peripheral nervous system.
  • olfactory receptor
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