The Digestive System ( Https )

1955 Words Apr 8th, 2015 8 Pages
Maureen Reid - Student I.D. REIM0115; Task M; Confirm Physical Health Status.
The Digestive System

Parts of the Digestive System (https://www.thinglink.com/scene/496007041890910209)
The digestive system comprises of multiple organs like the mouth, which consists of the salivary glands, saliva, tongue and epiglottis; the Pharynx, Oesophagus, Diaphragm, Stomach, Spleen, Liver, Pancreas and the Lower gastrointestinal tract which includes the small and large intestine and the caecum. The major role of this system like it suggests is to digest food. It digests and provides nutrients to the body and passes on the waste to the excretory system to safely pass it out of the body. The Mouth breaks down the food into small components which are then accordingly absorbed and assimilated into the body. The salivary glands secrete saliva which also helps in the production of bolus which makes the task easier and it is then swallowed by the oesophagus and passed right down into the stomach. The saliva contains a catalytic enzyme called amylase which starts working on the food in the mouth itself and digestion is also helped due to the mastication of the food by the teeth and muscular contractions of the peristalsis.
The term peristalsis refers to the rhythmic contraction of muscles that begins right up in the oesophagus and up till the walls of the stomach and the gastrointestinal tract. Gastric juices and mucus in the stomach aid peristalsis and a smooth passage is provided to the food…
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