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Which Circular Muscle Found in Tubular Structures Regulates Passage of Substances

question 118

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Which circular muscle found in tubular structures regulates passage of substances?


Definitions:

Secretin

Hormone formed by the epithelial cells of the duodenum; stimulates secretion of pancreatic juice high in bicarbonate ions.

Bile Production

The process of creating bile, a digestive fluid, by the liver and its storage in the gallbladder.

Gastric Secretion

The release of digestive enzymes and acids by the stomach’s lining to aid in food digestion.

Duodenal pH

The level of acidity or alkalinity in the duodenum, the first section of the small intestine, which plays a critical role in digestive processes.

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