As we respond to the questions in this thread we will all begin to learn the...

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Medical Sciences

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.....

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After the mastication process by teeth the ham and cheese sandwich with pickle and lettuce are chewed The chewed food materials are mixed with the salivary juice that contains ptyaline enzyme which acts on the starch molecules of the bread in sandwich This ptyaline enzyme acts on this starch and produce moltose and dextrin as the product This action of ptyaline in the buccal cavity makes the food more palatable and produce bolus This bolus is soft and easy to digest in the next digestive tract The soft bolus then swallowed through the oesophagus by its peristaltic movements This peristaltic movements of oesophagus helps the food bolus to enter into the stomach Stomach In the stomach the protein molecules mainly ham of sandwich is digested by See Answer

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