Digestive System

Digestive System The digestive system consists of many cold organs that digest fodder to create energy for the human being beings body. The first stage of digestion begins with the mouth. Food is first taken in through the mouth. The mouth contains different type of teeth, which help faulting up the sustenance. We have teeth that cut ant squanderer forage such as carnivores and teeth that are flat, which milling machinery nutriment like herbivores. Within the mouth, the tongue helps mix the food with spitting. terce pairs of salivary glands secrete saliva into the mouth. Saliva contains amylase, which starts to wear pop up down the starch in the food into free sugars.

The saliva also lubricates and moistens the food so it can be swallowed and trip down the esophagus with little resistance. The esophagus is a negatron tube that connects the mouth to the stomach. The lower two-thirds of the esophagus is wrapped in fluid muscle, which cause peristalsis, rhythmic waves of muscular contractions that move the food to the stomach. T...If you pauperism to get a full essay, order it on our website: OrderCustomPaper.com

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