The muscular lacuna (Latin: lacuna musculorum) is the lateral compartment of the thigh beneath the inguinal ligament. It is separated from the medial vascular lacuna by the iliopectineal arch. It is occupied/traversed by the iliopsoas muscle, and femoral nerve.[1] The lateral cutaneous nerve of the thigh may pass through the muscular lacuna,[2] or it may pierce the inguinal ligament itself.[3]


  1. ^ "lacuna musculorum". Retrieved 2023-06-14.
  2. ^ Gray, Andrew T. (2019). "39 - Lateral Femoral Cutaneous Nerve Block". Atlas of Ultrasound-Guided Regional Anesthesia (3rd ed.). Elsevier. pp. 143–149. doi:10.1016/B978-0-323-50951-0.00039-6. ISBN 978-0-323-50951-0.
  3. ^ Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 326. ISBN 978-0-7295-3752-0.