Brian Lee
Aug 27, 2025
Review Pending
Table of Contents
Summary
- Origins
- Infraspinous fossa of the 🦴 scapula
- Insertions
- Middle facet of the greater tubercle of the humerus
- Actions
- External (lateral) rotation of the shoulder
- Shoulder stabilization as a part of 📓 rotator cuff muscle group
Illustrations
Anatomography, CC BY-SA 2.1 JP, via Wikimedia Commons
Translations
- Russian
- Подостная мышца
- French
- sous-épineux
References
- ⚙️
Glenohumeral Joint
- 📓
Rotator Cuff
- 📕
Gf, 160.
- Hale
And Coyle 1977
- 108: Rubens, Study of a River God for the Four
Rivers
- “The supraspinatus (I) and the infraspinatus (J)
steady the head of the humerus … and assist … the outward rotation
and abduction of the arm.”
- 110: Michelangelo, Standing Nude, Seen from the
Back
- “Below, we can see the infraspinatus (L), …”
- Left shoulder flexion with external rotation.
- 114-115, 126, 132, 138, 252 TODO
- Wikipedia
