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Transcript
The Digestive System Overview of the Digestive System Digestive Tract: Mouth, pharynx, and esophagus, stomach, small intestine, and large intestine (colon) Accessory Organs: Teeth, tongue, salivary glands, pancreas, liver, and gallbladder Digestive system histology Digestive system histology Identify: • Mucosa • Submucosa • Muscularis • Serosa or adventitia? Adventitia or serosa? Adventitia (connective tissue around organs superior to diaphragm) Serosa = visceral peritoneum Digestive system histology Oral Cavity The Pharynx • Nasopharynx • Oropharynx • Laryngopharynx Salivary Glands The Esophagus Stomach Stomach Duodenum and Related Organs Small Intestine – Gross Anatomy • Three subdivisions: duodenum, jejunum, and ileum Gross Anatomy of Large Intestine •Cecum •Appendix •Ascending •Transverse •Descending •Sigmoid colon •Rectum •Anus Pancreas and Gallbladder Gallbladder • Stores and concentrates bile • Expels bile into duodenum • Bile emulsifies fats Visceral Surface of the Liver Microscopic Anatomy of Liver Mesenteries • Superficial view of the abdominal organs Mesenteries • Greater omentum and transverse colon reflected Mesenteries • Sagittal section through the abdominopelvic cavity
