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Alimentary canal / gastrointestinal (GI) tract
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The digestive system. A tube starting at the mouth, where food enters the body, and ending at the anus, where solid waste products are excreted from the body.
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Oral Cavity
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Buccal cavity. The beginning of the alimentary tract.
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The Teeth
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Perform mastication(chewing, tearing, and grinding) of food.
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Salivary Glands
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The oral cavity contains three pairs of these: Sublingual glands, submandibular glands, and parotid glands.
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Pharynx
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Throat
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Uvula
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Soft fleshy v-shaped tissue.
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Trachea
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One of two tubes in the low portion of the pharynx that leads to the lungs.
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Esophagus
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One of two tubes in the low portion of the pharynx that leads to the stomach.
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Epiglottis
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Small flap of tissue that covers the trachea while swallowing.
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Stomach
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First major site of digestion. Located in the LUQ of the abdominal cavity.
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Duodenum
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First part of the small intestine.
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Small intestine
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Continuation of the GI tract. A coiled 20 foot long tube. Consists of the duodenum, jejunum, and ileum.
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Jejunum
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Middle division of the small intestines.
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Ileum
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Lower division of the small intestines.
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Large intestines
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The large bowel, about 5 feet long, extends from ileum to the anus. Consists of the cecum, colon, rectum, and anal canal.
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