As we respond to the questions in this thread we will all beginto learn the \"whys\" of how food passes through the digestivesystem.
Let's start with a ham and cheese sandwich with lettuce andpickles. As I bite into my sandwich the teeth are present formastication to begin the process of mechanical digestion and thesaliva begins to mix with my food where salivary amylase is presentand starts the digestion of the starchy bread. What happens next?(Think about the carbohydrates, proteins and fat in oursandwich)
Let's begin the exploration of the digestive tract.....
