The Digestive System is an organ system that processes food and extracts nutrients from it. It withal eliminates residue. The digestive system is open to do this in foursome stages known as ingestion, digestion, absorption and defecation. The digestive system has deuce anatomical subdivisions known as the digestive tract, which includes the oral cavity, pharynx, esophagus, stomach, lilliputian intestine, and large intestine, and the accessory organs, which include the odontiasis, tongue, salivary glands, liver, gallbladder, and pancreas. In pastime the digestion of a bologna sandwich with mayonnaise and lettuce, and an orangish, you argon able to see the mechanical and chemical digestion, absorption, circulation, and assimilation of a easy balanced meal (Saladin, 954).
When you first begin with the bologna sandwich and orange, the digestion process starts with the mouth, also known as the oral or buccal. The mouth contains the cheek, lips, the tongue, the palate, and the teeth, which all have a part in the digestion process. ?The cheek and lips retain food and push it between the teeth for sacramental manduction? (Saladin, 958). With each morsel, the tongue maneuvers the sandwich and then the orange between teeth and also prepares it for mastication by evacuant a portion of saliva from the lingual glands.
The palate aid the tongue in holding and manipulating the sandwich, it also allows you to breathe bandage you?re chewing. The teeth, called the dentition, are composed of the incisors and canines. The incisors are used to bite of pieces of the sandwich and orange and the canines are used to puncture and atom it. The teeth are very beta in the mastication process because they crush and grind the food so that you are able to swallow without any problems. Saliva is also important because it moistens the mouth, digests a little starch and...
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