What Is the Best Description of a Tetanic Contraction in a Skeletal

Multiple Choice

What is the best description of a tetanic contraction in a skeletal muscle cell?

A) A single action potential in the motor neuron causes a sustained contraction.
B) Multiple action potentials in the motor neuron cause a sustained contraction.
C) The action potential in the muscle cell is prolonged to last as long as the contraction.
D) Repeated action potentials from the motor neuron summate into a sustained depolarization of the motor end plate,causing a sustained contraction.
E) A very large amplitude action potential in the motor neuron causes a very strong contraction in the skeletal muscle cell.