💪 Infraspinatus

Summary

Origin	Infraspinous fossa of the scapula
Insertion	Middle facet of the greater tubercle of the humerus
Actions	External (lateral) rotation of the shoulder Shoulder stabilization as a part of the rotator cuff muscle group

Illustrations

Infraspinatus muscle animation — Anatomography, CC BY-SA 2.1 JP, via Wikimedia Commons

Infraspinatus, Richer

Translations

Language	Translation
French	sous-épineux
Russian	Подостная мышца

References

Glenohumeral Joint
Rotator Cuff
Wikipedia
Goldfinger 1991, 160.
HC 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