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Muscles that move the arm

Muscles that move the arm. Muscles that move the arm: Are group according to their actions: Flexors Extensors Abductors Rotators. Muscles that move the arm. Flexors- Coracobrachialis - Location: extends from the scapula to the medial humerus Action: flexes & abducts the arm

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Muscles that move the arm

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  1. Muscles that move the arm • Muscles that move the arm: • Are group according to their actions: • Flexors • Extensors • Abductors • Rotators

  2. Muscles that move the arm • Flexors- • Coracobrachialis- • Location: extends from the scapula to the medial humerus • Action: flexes & abducts the arm • Pectoralis Major- • Shape: thick, fan shaped muscle of the upper chest • Location: extends from the thorax to the armpit • Action: pulls the arm forward & across the chest

  3. Muscles that move the arm Flexors

  4. Muscles that move the arm • Extensors- • Teres minor- • Location: connects the scapula to the humerus • Action: extends the humerus; adducts/ rotates the arm medially • LatissimusDorsi • Shape: wide, triangular muscle • Location: extends upward from the lower back & around the side • Action: extends & adducts the arm,rotates the humerus; also pulls the shoulder downward & back

  5. Muscles that move the arm Extensors

  6. Muscles that Move the Arm

  7. Muscles that move the arm • Abductors- • Supraspinatus- • Location: in the depression above the spine of the scapula; connects the scapula to the greater tubercle of the humerus • Action: abducts the arm • Deltoid- • Shape: thick, triangular muscle covering the shoulder joint • Location: connects the clavicle & scapula to the humerus • Action: abducts the arm

  8. Muscles that move the arm Extensors

  9. Muscles that Move the Arm

  10. Muscles that move the arm • Rotators- • Subscapularis- • Shape: large, triangular • Location: covers anterior surface of the scapula; connecting the scapula to the humerus • Action: rotates the arm medially • Infraspinatus- • Location: in the depression below the spin of the scapula; attach the scapula to the humerus • Action: rotates the arm laterally • Teres Minor- • Location: connects the scapula to the humerus • Action: rotates the arm laterally

  11. Muscles that move the arm Extensors

  12. Muscles that Move the Arm

  13. Muscles of the Shoulder

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