An action potential enters a muscle cell at the ____________.Multiple Choiceactin myofilamentsnucleusT tubulesarcomere

n action potential for a muscle cell is propagated along the __________.Multiple Choicesarcomeresarcolemmatropomyosinsarcoplasm

The action potential moves from the sarcolemma surface deep into the myofiber via the Blank______.Multiple choice question.sarcoplasmmyosin filamentssarcoplasmic reticulumT tubules

The action potential is conducted into a skeletal muscle fiber byQuestion 7Select one:a.transverse tubules.b.neuromuscular junctions.c.motor end platesd.triads.e.sarcoplasmic reticulum.

Smooth muscle responds to action potentials by Blank______.Multiple choice question.an all-or-nothing reaction to the action potentialsa slow contraction in response to a series of action potentials

Multiple Choice QuestionCardiac muscle cells are Blank______, which allows them to contract spontaneously and rhythmically.Multiple choice question.voluntarysmoothautorhythmicstriated