Updated: 12/26/2021

Subscapularis

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  • Summary
      • Subscapularis
      • Origin
      • Subscapular fossa of scapula
      • Insertion
      • Lesser tuberosity of humerus
      • Action
      • Medially rotates arm and adducts it; helps to hold humeral head in glenoid cavity of scapula
      • Innervation
      • Upper and lower subscapular nerves (C5, C6, C7)
      • Arterial Supply
      • Subscapular artery

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(OBQ06.179) The lift-off test evaluates internal rotation of the shoulder with the hand placed behind the back. During this test, which muscle exhibits the highest percent of maximal contraction?

QID: 365

Subscapularis

96%

(5392/5613)

Pectoralis major

1%

(44/5613)

Pectoralis minor

0%

(26/5613)

Latissimus dorsi

1%

(51/5613)

Supraspinatus

1%

(71/5613)

L 1 C

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