subscapularis muscle

The subscapularis muscle is one of the four muscles that make up the rotator cuff, the others being: supraspinatus, infraspinatus and teres minor.

Summary

• origin: subscapular fossa of the scapula
• insertion: lesser tubercle of the humerus
  • some fibers also extend to the greater tubercle and bicipital groove
• arterial supply: suprascapular, axillary and subscapular arteries
• innervation: upper and lower subscapular nerves (C5-6)
• action: internal rotation of the humerus, adduction of the humerus, stabilizes the shoulder joint
• bursa: lies between subscapularis tendon and glenoid neck
  • communicates with the joint cavity via the foramen of Weitbrecht (between the superior and middle glenohumeral ligament)

Siehe auch:

• Rotatorenmanschette
• Musculus teres minor
• Musculus infraspinatus
• Musculus supraspinatus
• Ruptur der Subscapularissehne

und weiter:

• Ruptur ischiocrurale Muskulatur
• Bursa subacromialis
• Schultermuskulatur
• Oberarmmuskulatur
• Schulter Anatomie
• Schultersonographie
• rotator cuff interval
• Impingement der Schulter
• quadrangular space
• Schultergelenksmuskulatur
• Ansatz am Tuberculum minus
• Hämatom im Musculus subscapularis
• subscapularis rupture
• subakromiales Impingement
• subcoracoidales Impingement