Contrast the movement of chyme in the small intestine vs. a bolus in the esophagus.

Describe the structures and functions of the pharynx and esophagus, and the key events of the swallowing process.

Include three of the most importantfeatures of Digestive system and how it interacts with the respiratory system

Identify the incorrect statement about the GI tract: (A) the stomach has three layers of smooth muscle  (B) the esophagus contains both skletal and smooth muscle (C) transit time can be tested with a sitzmarker test (D) if the pyloric sphinter is open, this can lead to heartburn