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The Digestive System

Published on Nov 19, 2015

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PRESENTATION OUTLINE

1.

DIGESTIVE SYSTEM

AN INTRODUCTORY TOUR
Photo by Double--M
2.

THE ORAL CAVITY

  • Tongue
  • Salivary glands
  • Hard palate
  • Soft palate
Photo by bradleygee
3.

TEETH

  • Incisors, cuspids, bicuspids, molars
  • Primary dentition
  • Secondary dentition
Photo by Dallas Krentzel
4.

PHARYNX & ESOPHAGUS

  • The two organs utilized in swallowing: pharynx and esophagus
  • Swallowing has 3 phases: buccal, pharyngeal, esophageal
  • Two ends of the esophagus - upper and lower esophageal sphnicters
Photo by GreenFlames09
5.

THE STOMACH

  • Regions of the stomach:
  • Fundus, cardia, body, pylorus
  • Wrinkles of the stomach = rugae (allow expansion)
Photo by watashiwani
6.

STOMACH GLANDS & CELLS

  • Gastric glands
  • Parietal cells
  • Chief cells
  • 1500 mL of gastric juices
Photo by Hey Paul Studios
7.

INTESTINAL TRACT

  • Intestinal villi - absorption
Photo by brianfagan
8.

SMALL INTESTINE

  • Duodenum: 10 in
  • Jejunum: 98.4 in
  • Ileum: 138 in
Photo by watashiwani
9.

LARGE INTESTINE

  • Appendix
  • Ascending colon
  • Transverse colon
  • Descending colon
  • Sigmoid colon
Photo by Hey Paul Studios
10.

LARGE INTESTINE CONT.

  • Rectum
  • Anus
Photo by Hey Paul Studios

Emma Johnson