Biology, 06.05.2020 03:10, sierrac257

Select the description below that illustrates a difference hetween a sphincter and circular muscle: A) A sphincter is composed of smooth muscle while circular muscle is composed of skeletal muscle tissu B) A sphincter is a thickening of circular muscle that can prevent the movement of digesting materials while circular muscle is involved in propulsion digesting material C) Sphincters are found throughout the Gl tract while circular muscle is found only in the proximal portion of the Gl tract D) Sphincters are found in the proximal portion of the GI tract while circular muscle is found in the distal portions

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Select the description below that illustrates a difference hetween a sphincter and circular muscle:...