Peyer patches

E. Pathology by systems

• Cardiovascular system
• Digestive system
  • Liver and pancreatobiliary system
  • Stomach
  • Colon and rectum
  • Anus
  • Small intestine
    • Duodenum
    • Jejunum
    • Ileum
  • Appendix
  • Esophagus
• Endocrine system
• Locomotory system
• Nervous system
• Reproductive system
• Respiratory system
• Skin
• Urinary system