Human Physiology Essay – Why does muscle contraction require energy, and where does this energy co

Why does muscle contraction require energy, and where does this energy come from?

You should explain the three steps in force generation in muscle and the role of ATP in each.You should explain the neuromusclular junction, voltage-gated Ca2+ channels, acetylcholine,action potential, T-tubules, DHP receptor, ryanodine receptor, sarcoplasmic reticulum, SERCA pumps, the role of calcium in muscle contraction, troponin, tropomyosin, myosin, actin, thick filament, thin filament, sliding filament hypothesis, sarcomere, myofibril, muscle fiber, glycolysis, Krebs cycle, oxidative phosphorylation, creatine, creatine kinase, and phosphocreatine.