Muscle
Teres minor
Rotator cuff — lateral rotation
High-yield
Only rotator cuff muscle supplied by the axillary nerve; laterally rotates the arm.
Overview
The small rotator cuff muscle inferior to infraspinatus, sharing its lateral-rotation action and innervated by the axillary nerve.
Reference facts
- Origin
Superior part of the lateral (posterior) border of the scapula
- Insertion
Inferior facet of the greater tubercle of the humerus
- Action
Laterally rotates the arm; stabilises the glenohumeral joint
- Innervation
Axillary nerve (C5, C6)
- Blood supply
Circumflex scapular artery