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Digestive System Cat, Histology and Models
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Glands and Tonsils on the Models
Submandibular gland Sublingual gland Parotid gland Palatine tonsil Pharyngeal tonsil
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Glands Parotid gland Submandibular
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Glands Sublingual Submandibular
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Pharyngeal tonsil Palatine tonsil
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Uvula Lingual frenulum
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Stomach Cardiac region Fundus region Lesser curvature Body region
Pyloric region Greater curvature
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Stomach Pyloric sphincter Plicae circularis Rugae Duodenum
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PANCREAS AND SPLEEN MODELS
Kidney Gall bladder Pancreas spleen (function is to remove foreign antigens and aging RBC’s) duodenum plicae circularis
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Spleen Plicae circularis Pancreas Duodenum
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Pancreas Gall bladder Spleen Kidney Plicae circularis Duodenum
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GI MODEL Stomach Pancreas Spleen Pyloric sphincter
circular folds (known as plicae circularis; these are macroscopic folds in the mucosa) ascending colon transverse colon descending colon tenia coli Jejunum (middle part of small intestine) Ileum Cecum Ileocecal valve Appendix Rectum NOTE: Plicae circularis, microvilli, and villi all increase the surface area of the small intestinal lining
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GI Model
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Pyloric sphincter Stomach Duodenum Spleen Pancreas Plicae circularis
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Transverse colon Tenia coli Ascending colon Descending colon Jejunum Rectum
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Ileocecal valve Ileum Cecum Plicae circularis Appendix Tenia coli Rectum
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INTESTINE MODEL Stomach Pancreas Spleen Pyloric sphincter
circular folds (known as plicae circularis; these are macroscopic folds in the mucosa) ascending colon transverse colon descending colon tenia coli Jejunum (middle part of small intestine) Ileum Cecum Ileocecal valve Appendix Rectum NOTE: Plicae circularis, microvilli, and villi all increase the surface area of the small intestinal lining
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Duodenum Pancreas Greater Omentum Tenia coli Transverse colon Jejunum Cecum
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Sigmoid colon (first half)
Pancreas Common bile duct Tenia coli Duodenum Descending colon Mesentery Appendix Ascending colon Sigmoid colon (first half) Cecum
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Other half of the Sigmoid colon
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Intestine Common Bile Duct Mesentery Tenia coli
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Jejunum
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Descending colon Ascending colon Mesentery Cecum Appendix Sigmoid colon Rectum
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Posterior View Duodenum Pancreas Ascending colon Descending colon Mesentery Cecum Appendix Sigmoid colon Rectum
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Liver Models gall bladder cystic duct common bile duct
falciform ligament
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Liver Falciform ligament CYSTIC DUCT, GALL BLADDER
COMMON BILE DUCT (has been cut) Falciform ligament
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Liver Falciform ligament COMMON BILE DUCT (has been cut)
CYSTIC DUCT, GALL BLADDER Falciform ligament
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Liver Cystic duct Gall bladder Pancreas Duodenum Common Bile duct
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Liver Lobule Central vein Hepatic Triad: artery, vein, bile duct Sinusoids with Kupfer cells (macrophages)
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Intestinal Villus Villus Lacteal Intestinal crypt Mucosa with
simple columnar epithelium
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SLIDES Salivary gland Tongue Small Intestine taste bud Villi
Intestinal crypt
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Salivary gland
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Salivary gland
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Tongue Taste buds
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SLIDES Small intestine layers Mucosa Submucosa Muscularis externa
Inner circular layer Outer longitudinal layer Serosa
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Outer longitudinal layer
Serosa Mucosa Muscularis Externa Submucosa Inner circular layer Outer longitudinal layer
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SLIDES Small intestine
Villi, microvilli, and plicae circularis: (Serve to increase the surface area of the small intestine) Intestinal crypts
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Small Intestine Villus Intestinal crypt
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SLIDES Liver: the functional unit of the liver is the lobule.
central vein
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Liver Lobules
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Liver Lobule Central vein
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Liver
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SLIDES Spleen: removes foreign antigens and aging RBC's Pancreas
Red pulp White pulp Pancreas Islets Acini Be able to tell the difference between liver, spleen, pancreas, and kidney slides!
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Spleen
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Spleen Red Pulp White pulp
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Pancreas Islet of Langerhans (secretes insulin)
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Pancreas Acinar cells (secrete digestive enzymes)
Islet of Langerhans (secretes insulin)
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Pancreas: don’t get this confused with a glomerulus in the kidney!
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Pancreas Kidney
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Spleen Liver Red Pulp White pulp Central vein
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