How is the muscularis externa modified in the stomach? how is the muscularis externa modified in the stomach? the muscularis ext
erna of the stomach has plicae circularis. the muscularis externa is made of skeletal muscle instead of smooth muscle. there is an additional third oblique layer of smooth muscle. there is only one layer of smooth muscle in the muscularis externa of the stomach?
The correct layer is "<span>there is an additional third oblique layer of smooth muscle".
The muscularis externa of the stomach is purely smooth muscle (no skeletal muscles or other striated muscles) composed of three layers; inner oblique, middle circular, and external longitudinal layers. Plicae circularis can only be found in the intestines, not in the stomach.</span>
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