Answer Happy

Imagine that in a skeletal muscle fiber you replaced all"normal" acetylcholine receptors with mutated acetylcholinereceptors that allowed calcium to enter the cell but notsodium. All other ion channels behave as they wouldnormally. When a lower motor neuron releasedneurotransmitter, the skeletal muscle fiber would
a.
Contract but never fire an action potential
b.
Not contract
c.
Contract while firing action potentials