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Smooth Muscle Differences

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Smooth muscle and skeletal muscle are similar yet different in many ways. The most important characteristic of smooth muscle is that it contracts involuntarily, as skeletal muscle contracts voluntarily. The splitting of ATP is much slower in smooth muscle, which causes slower contraction than what is seen in skeletal muscle, which in turn makes smooth muscle resilient to fatigue (Johnson 2013). Smooth muscle cells have a pacemaker potential, this is when the cells generate action potentials without contribution from a nerve or hormones, and is due to leaky Ca++ channels that depolarize the cell slowly. Both types of the muscles use calcium and bridge formation between actin and myosin to create force but use them in different ways. The calcium

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