The Digestive System. Overview of the Digestive System Digestive Tract: Mouth, pharynx, and esophagus, stomach, small intestine, and large intestine (colon)

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Presentation 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

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

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

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