Structures of the Digestive System
Nov 18, 2014
2.07 Remember the structures of the Digestive System
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Essential Question
What are the structures of the digestive system?
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Structures of the digestive system
Digestive system
Also known as: Alimentary Canal Digestive Tract Gastrointestinal Tract
Upper GI Lower GI
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Primary structures Mouth (oral cavity) Esophagus (gullet) Stomach Small intestine Large intestine (colon)
Accessory structures Tongue Teeth Salivary glands Pancreas Liver Gall bladder
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Structures of the digestive system
Structures of the digestive system
Mouth (buccal /oral cavity)
Tongue Teeth Salivary Glands Palate Uvula
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Structures of the digestive system
Tongue
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Structures of the digestive system
TeethPrimary (deciduous)
Secondary (permanent)
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Structures of the digestive system
Salivary glands Parotid gland Submandibular gland Sublingual gland
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Structures of the digestive system
Palate Hard Soft
Uvula Flap of skin
hanging in the
back of the throat
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Structures of the digestive system
Pharynx (throat) Nasopharynx Oropharynx Hypopharynx
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Structures of the digestive system
EsophagusFour wall layers
– Mucosa– Submucosa– Muscular– External serous
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Structures of the digestive system
Stomach3 Portions Fundus, Body, Pylorus
2 sphinctersCardiac and Pyloric
4 wall layersMucosa, submucosa, muscular and serous
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Structures of the digestive system
Small intestinesDuodenum
First segment
Jejunum Second segment
Ileum Third segment
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Structures of the digestive system
Accessory OrgansPancreasLiverGall Bladder
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Structures of the digestive system
Large intestine(colon)
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Structures of the digestive system
Check your knowledge…
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Essential Question
What are the structures of the digestive system?
2.07 Remember the structures of the digestive system 17
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