Exam 3 Content - QP Questions And
Answers 2026 Update!!!
cells that can propagate action potentials for
excitable cells
fast signaling; include muscle and nerve cells
cells in the ventral horn of the spinal chord;
motor neurons process the synaptic inputs leading up to the
action potential
dendrites processes in motor neurons that intake signals
the part that connects the motor neuron to
axon
muscle fiber; where the action potential occurs
myelin a sheath that partially covers the axon
when the cell membrane potential becomes less
depolarization
polarized; caused by an inward current
when the cell membrane becomes more
hyperpolarization
polarized; caused by an outward current
electrical characteristics of an axon; how time
and length constants define voltage build up (or
cable properties break down) with distance and time; membrane
resistance and capacitance, axoplasm electrical
resistance
a large depolarizing event in the axon
membrane that causes the membrane potential
action potential to exceed its threshold, leads to a rapid rise in
the membrane potential followed by a quick
repolarization back to resting state
the movement of the action potential away from
propagation its point of origin; movement of the action
potential along the surface of a nerve
the time it takes for the membrane potential to
latency
near its threshold
, the membrane potential required to fire an
threshold
action potential 50% of the time
Answers 2026 Update!!!
cells that can propagate action potentials for
excitable cells
fast signaling; include muscle and nerve cells
cells in the ventral horn of the spinal chord;
motor neurons process the synaptic inputs leading up to the
action potential
dendrites processes in motor neurons that intake signals
the part that connects the motor neuron to
axon
muscle fiber; where the action potential occurs
myelin a sheath that partially covers the axon
when the cell membrane potential becomes less
depolarization
polarized; caused by an inward current
when the cell membrane becomes more
hyperpolarization
polarized; caused by an outward current
electrical characteristics of an axon; how time
and length constants define voltage build up (or
cable properties break down) with distance and time; membrane
resistance and capacitance, axoplasm electrical
resistance
a large depolarizing event in the axon
membrane that causes the membrane potential
action potential to exceed its threshold, leads to a rapid rise in
the membrane potential followed by a quick
repolarization back to resting state
the movement of the action potential away from
propagation its point of origin; movement of the action
potential along the surface of a nerve
the time it takes for the membrane potential to
latency
near its threshold
, the membrane potential required to fire an
threshold
action potential 50% of the time
