ANATOMY – UB – SHOULDERS | DELTOIDS | ROTATOR CUFF

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MUSCLE & BONE

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· DELTOIDS

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1

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· ROTATOR CUFF

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· S.I.T.S. MUSCLES: Supraspinatus | Infraspinatus | Teres Minor | Subscapularis
· These muscles work in unison to stabilize the shoulder and are involved in other actions other than External & Internal Rotation

1. SUPRASPINATUS: Abducts the arm 0-15^o, and assists deltoid for 15-90^o
2. INFRASPINATUS: External or Lateral Rotation (Exorotation); Arm Adduction
3. TERES MINOR: External or Lateral Rotation (Exorotation)
4. SUBSCAPULARIS: Medial or Internal Rotation (Endorotation)

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1

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NERVE SUPPLY

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1

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· DELTOIDS

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AXILLARY NERVE

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· ROTATOR CUFF 

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· S.I.T.S. MUSCLES: Supraspinatus | Infraspinatus | Teres Minor | Subscapularis
NOTE: These muscles are involved in other actions other than External & Internal Rotation

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1. SUPRASPINATUS: Suprascapular Nerve
2. INFRASPINATUS: Suprascapular Nerve
3. TERES MINOR: Axillary Nerve
4. SUBSCAPULARIS: Upper and lower subscapular Nerves

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