Infraspinous fossa - Upper extremity - Bones of upper limb - e-Anatomy
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Infraspinous fossa

Fossa infraspinata

Definition

IMAIOS

The infraspinous fossa is a broad, shallow depression located on the dorsal surface of the scapula, inferior to the scapular spine. The medial two-thirds of this fossa serve as the origin for the infraspinatus muscle, one of the rotator cuff muscles responsible for external rotation of the shoulder and stabilizing the glenohumeral joint.

References

  • Miniato MA, Mudreac A, Borger J. Anatomy, Thorax, Scapula. [Updated 2023 Jul 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK538319/

  • Williams JM, Sinkler MA, Obremskey W. Anatomy, Shoulder and Upper Limb, Infraspinatus Muscle. [Updated 2023 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK513255/

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