The Digestive System Overview of the Digestive System

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The Digestive System

The Digestive System

Overview of the Digestive System Digestive Tract: Mouth, pharynx, and esophagus, stomach, small intestine,

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

Digestive system histology Identify: • Mucosa • Submucosa • Muscularis • Serosa or adventitia?

Digestive system histology Identify: • Mucosa • Submucosa • Muscularis • Serosa or adventitia?

Adventitia or serosa? Adventitia (connective tissue around organs superior to diaphragm) Serosa = visceral

Adventitia or serosa? Adventitia (connective tissue around organs superior to diaphragm) Serosa = visceral peritoneum

Digestive system histology

Digestive system histology

Oral Cavity

Oral Cavity

The Pharynx • • • Nasopharynx Oropharynx Laryngopharynx

The Pharynx • • • Nasopharynx Oropharynx Laryngopharynx

Salivary Glands

Salivary Glands

The Esophagus

The Esophagus

Stomach

Stomach

Stomach

Stomach

Duodenum and Related Organs

Duodenum and Related Organs

Small Intestine – Gross Anatomy • Three subdivisions: duodenum, jejunum, and ileum

Small Intestine – Gross Anatomy • Three subdivisions: duodenum, jejunum, and ileum

Gross Anatomy of Large Intestine • Cecum • Appendix • Ascending • Transverse •

Gross Anatomy of Large Intestine • Cecum • Appendix • Ascending • Transverse • Descending • Sigmoid colon • Rectum • Anus

Pancreas and Gallbladder

Pancreas and Gallbladder

Gallbladder • Stores and concentrates bile • Expels bile into duodenum • Bile emulsifies

Gallbladder • Stores and concentrates bile • Expels bile into duodenum • Bile emulsifies fats

Visceral Surface of the Liver

Visceral Surface of the Liver

Microscopic Anatomy of Liver

Microscopic Anatomy of Liver

Mesenteries • Superficial view of the abdominal organs

Mesenteries • Superficial view of the abdominal organs

Mesenteries • Greater omentum and transverse colon reflected

Mesenteries • Greater omentum and transverse colon reflected

Mesenteries • Sagittal section through the abdominopelvic cavity

Mesenteries • Sagittal section through the abdominopelvic cavity