Digestive System Part I: Alimentary Canal
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| Organs of the digestive system | show 🗑
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| show | make up a hollow tube that extends from oral cavity to anus; consist of organs – mouth, pharynx, esophagus, stomach, small intestine, large intestine
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| Mouth, pharynx, esophagus, stomach, small intestine, large intestine | show 🗑
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| show | empty their products into the alimentary canal via ducts; include these organs – salivary glands, liver, gallbladder, pancreas
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| show | accessory organs of digestive system
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| show | eating food, drinking liquids
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| Propulsion | show 🗑
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| Swallowing | show 🗑
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| Peristalsis | show 🗑
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| Mechanical/Physical Digestion | show 🗑
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| Chemical Digestion | show 🗑
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| show | primarily involves movement of digested end products from lumen of GI tract into blood in blood capillaries; but some lipids/fats are also absorbed into lymph in lymphatic capillaries called lacteals
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| Defecation | show 🗑
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| show | Histology of the alimentary canal wall; four major/general layers from inner to outermost
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| Mucosa | show 🗑
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| Simple columnar epithelium | show 🗑
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| show | specific epithelium tissue component of mouth, most of pharynx, esophagus due to greater physical abrasion from food
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| show | three specific sublayers of mucosa
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| Lining epithelium | show 🗑
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| show | specific layer of mucosa; connective tissue positioned deep to lining epithelium; contains most of mucosa-associated lymphoid tissue (MALT) which defends against invasion by bacteria and other microbes in GI tract
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| Mucosa-associated lymphoid tissue (MALT) | show 🗑
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| Muscularis mucosae | show 🗑
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| Submucosa | show 🗑
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| Musularis externa | show 🗑
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| Longitudinal and circular layers | show 🗑
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| show | third sublayer of smooth muscle tissue found only in stomach
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| Parasympathetic division of ANS via vagus nerve | show 🗑
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| show | how activity of smooth muscle in muscularis externa is decreased thus inhibiting digestive tract motility
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| Serosa/visceral peritoneum | show 🗑
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| Peritonitis | show 🗑
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| Mesentery, greater omentum, falciform ligament | show 🗑
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| show | sheet-like structure that fans inferiorly from the posterior abdominal wall like long, pleated curtains to support the long coils of the jejunum and ileum of small intestine
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| Greater omentum | show 🗑
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| show | contain both parasympathetic and sympathetic components; psymp components stimulate digestive functions; symp components inhibit digestive functions
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| show | nerve plexuses in wall of alimentary canal
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| Myenteric nerve plexus | show 🗑
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| show | nerve plexus of alimentary canal located in submucosa
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