Which set of structures correctly defines the boundaries of Hesselbach's (inguinal) triangle?

• A Inferior epigastric vessels medially, rectus abdominis laterally, lacunar ligament inferiorly
• B Rectus abdominis medially, inferior epigastric vessels laterally, inguinal ligament inferiorly ✓
• C Conjoint tendon superiorly, inguinal ligament inferiorly, deep inguinal ring laterally
• D Rectus abdominis laterally, iliopubic tract superiorly, Cooper's ligament inferiorly

Explanation

Hesselbach's triangle is bounded by the lateral border of the rectus abdominis medially, the inferior epigastric vessels laterally, and the inguinal ligament inferiorly. Its floor is weakened transversalis fascia, and a direct inguinal hernia passes through it. Option A reverses the rectus and vessel positions, which would place the triangle incorrectly. Knowing this triangle matters because laparoscopic repair aims to cover it with mesh, and the inferior epigastrics are the key landmark distinguishing direct from indirect defects.

Reference: Gray's Anatomy for Students, 4th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.