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Region containing two sphincters through which feces are expelled from the body Peritoneum

The parasympathetic nervous system influences digestion by–

Structure through which pancreatic secretions and bile pass

The most powerful respiratory stimulus for breathing in a healthy person is ________.

Amount of air than can still be exhaled forcibly after a normal exhalation                                                                       

Which of the following maintains the patency (openness. of the trachea?

Before the blood carrying the products of protein digestion reaches the heart, it first passes through capillary networks in–

The larynx contains ________.

Total amount of exchangeable air

The collection of blood vessels, nerves, and lymphatics associated with a tooth is called–