The hesselbach's triangle defines the floor of the direct inguinal hernia. Its boundaries are:

• A Medially: linea alba; laterally: rectus abdominis; inferiorly: pubis
• B Medially: lateral border of rectus abdominis; laterally: inferior epigastric vessels; inferiorly: inguinal ligament ✓
• C Medially: femoral vein; laterally: external iliac artery; inferiorly: pubic ramus
• D Medially: inferior epigastric vessels; laterally: inguinal ligament; superiorly: deep ring

Explanation

Hesselbach's (inguinal) triangle is bounded medially by the lateral border of rectus abdominis (linea semilunaris), laterally by the inferior epigastric vessels, and inferiorly by the inguinal ligament. The floor is formed by the transversalis fascia. Direct inguinal hernias protrude through the posterior wall of the inguinal canal within this triangle (medial to the inferior epigastric vessels). Indirect hernias pass lateral to the inferior epigastric vessels through the deep (internal) inguinal ring.

Reference: BD Chaurasia's Human Anatomy, 8th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.