Stomach — Free Biology Illustration

Biology

Stomach

An isolated human stomach shown as a curved J-shaped muscular digestive sac in pale pink to reddish flesh tones. It has a rounded, bulbous upper fundus and wider central body that narrows toward the lower pyloric outlet, with thick smooth slightly inflated muscular walls and a distinct inward curve along the inner border. Short tubular openings are visible at each end for the esophageal inlet at the top and the small-intestinal outlet at the lower end. The outer contour is smooth and clearly thicker-walled than intestine; if the interior is shown or a cutaway is used, subtle internal folds of the stomach lining are visible near the inner surface.

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