Huxley and Niedergerke proposed the sliding filament model of this process, in which cross-bridges force the Z bands closer to each other.
Archibald Hill's empirical equation modelling this process gives an inverse relationship between force and velocity. Activation of dihydropyridine receptors in L-type calcium channels signals for this process to occur. According to the most common model of this process, ATP binding causes S1 to "cock", but then ATP hydrolysis causes it to lengthen as part of the power stroke. Huxley and Niedergerke proposed the sliding filament model of this process, in which cross-bridges force the Z bands closer to each other. Acetylcholine is required for activation of this process, during which the myosin head slides along actin. In tetanus, this process is never turned off. For 10 points, name this process in which sarcomeres are voluntarily stretched or compressed, such as when you stretch a biceps.
Archibald Hill's empirical equation modelling this process gives an inverse relationship between force and velocity.
muscle contraction [or muscle tension; or concentric contraction; or obvious equivalents; prompt on muscle movement]