Action Potential
What diffuses out of the cell and resets the muscle back to its original position?
Potassium Ions
what is the only energy source that can be used directly to power muscle activity
ATP
A single stimulus is delivered and the muscle contracts and relaxes. What Contraction is this?
A twitch contraction
Bulging muscles from weight lifting are from a ______ exercise.
Resistance
What diffuses across the synaptic cleft
Acetylcholine
When the muscles are low on oxygen they begin to produce ______ ________.
Lactic Acid
A single, brief, jerking contraction.
Muscle twitch
Biking and jogging are what type of exercise?
Aerobic exercise
The nerve sends its message across the _______ to the muscle cell.
Synaptic cleft
What does Anaerobic mean?
Without oxygen
Stimuli are delivered more frequently and the muscle does not have time to completely relax. What is this?
A Summing of contractions
A state of continuous partial contractions is called _____.
Muscle Tone
When the nerve fiver/axon reaches the muscle it branches into a number of axonal terminals that formes a Nerve-Muscle/Junction. What is an example of a Nerve-muscle/Junction?
Neuromuscular Junction
What produces only about 5% as much ATP from each glucose as aerobic respiration?
Anaerobic Glycolysis
A more complete fusion of twitches occurs as stimuli are delivered at a still faster rate. What contraction is this?
Incomplete Tetanus
Contractions that are most familiar to us are _______.
Isotonic Contractions
What builds up and off sets the electrical balance?
Sodium Ions
What provides a rich ATP harvest of 36 ATP per 1 glucose?
Aerobic Respiration
A contraction with no relaxation for a period of time with higher stimuli and a longer tension.
Complete tetanus
Contractions in which the muscle does not shorten that is pitted against an immovable object is ______.
Isometric Contractions