Topic 22 – Development and Histological Organization of Small Intestine and Appendix

This topic uses the AIM Learning Cycle to help MBBS students understand microscopic structure of small intestine.

1. Curriculum Coverage

Embryology

• Formation of midgut loop
• Rotation of midgut loop
• Physiological herniation
• Derivatives of midgut loop
• Development of mesenteries
• Developmental anomalies of midgut

Histology

• Histology of jejunum
• Histology of ileum
• Plica circulares
• Peyer’s patches
• Surface area specializations

  • Crypts of Lieberkühn
  • Villi
  • Microvilli

• Histology of appendix

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