VAN 221: Veterinary Splanchnology and Applied Anatomy (1+1)

Abdomen - Paralumbar fossa

PARALUMBAR FOSSA

• Non bony wall of abdomen (flank) and paralumbar fossa which is a part of flank and is clinically important
• Boundaries of paralumbar fossa are
  • Superiorly : Longissimus dorsi muscle,
  • Anteriorly : Posterior border of last rib,
  • Inferiorly  : Obliqus abdominis internus muscle

Clinical importance of the Paralumbar fossa

• For conducting rumenotomy, to reel ruminal movements, to palpate rumen and conduct laparatomy on left side
• On right side it is a site for enterotomy and caecal biopsy
• Observe different layers of abdominal wall i.e., skin, cutaneous muscle, tunica flava abdominis, obliqus abdominis externus and internus, rectus abdominis (only in floor), transverses abdominis and parietal peritoneum

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• Dissected lateral flank view
• Superficial dissection - flank
• Transverse section of abdominal cavity