How did Bayliss and Starling demonstrate that the small intestine secretes chemical signals that stimulate the pancreas to respond to acid?

B. They exposed a dog's small intestine to a cell extract made from a second dog's small intestine that had been exposed to acid.
C. They cut out a piece of the small intestine and exposed it to acid.
D. They injected pancreatic secretions from a dog previously exposed to acid into the small intestine of a second dog.
E. They injected acid into the pancreas after removing all of its innervation.


B. They exposed a dog's small intestine to a cell extract made from a second dog's small intestine that had been exposed to acid.

Biology & Microbiology

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