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The Upper Extremity

The Upper Extremity. Do Now. List as many muscles in the arm as you can. Do now #2. Give as many bones of the arm (elbow and up) as possible. Homework Review. Pg. 202 #15-17. Homework . Read 209-210 Possibly, maybe, a tiny quiz to start the class (Pay attention to pictures)

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The Upper Extremity

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  1. The Upper Extremity

  2. Do Now • List as many muscles in the arm as you can

  3. Do now #2 • Give as many bones of the arm (elbow and up) as possible

  4. Homework Review • Pg. 202 #15-17

  5. Homework • Read 209-210 • Possibly, maybe, a tiny quiz to start the class (Pay attention to pictures) • Create flash cards for all muscles covered today in class • Deltoid • Pectoralis Major • Biceps Brachii • Rotator Cuff

  6. Shoulder • Landmarks of the shoulder • Coracoid Process • Acromioclavicular joint • Greater Tubercle of Humerus • Lesser tubercle of Humerus • Deltoid Tuberosity

  7. Shoulder

  8. Muscles of the shoulder • Deltoid • Pectoralis Major • Biceps Brachii • Rotator Cuff • Supraspinatus • Infraspinatus • Subscapularis • Teres Major

  9. Deltoid • Origin: Lateral 1/3 of the clavicle; acromion and spine of scapula • Insertion: Deltoid tuberosity of humerus • Action: Prime mover of arm abduction; some flexion and extension of shoulder

  10. Deltoid

  11. Pectoralis Major • Origin: clavicle, sternum and cartilage of first 6 ribs • Insertion: Fibers insert by short tendon into greater tubercle of humerus • Action: Prime mover of arm flexion; adducts, medially rotates arm

  12. Pectoralis Major

  13. Biceps Brachii • Origin: Coracoid Process of scapula • Insertion: Proximal radius • Action: Flexes elbow, supinates forearm, weak shoulder flexor

  14. Biceps Brachii

  15. Rotator Cuff • Origin: Scapula • Insertion: Head of the humerus • Action: Abduction, internal rotation, external rotation

  16. Rotator Cuff

  17. Injuries of the Shoulder • Biceps Tondonitis • Shoulder Impingement

  18. Biceps Tendonitis • Overuse of the biceps • Opposite of overuse? • 2 origins of the bicep • Coracoid process • Glenoid tubercle • Very common in swimmers, pitchers

  19. Shoulder impingement • Commonly, an overuse injury • Muscles inflame in the shoulder and not enough space is allowed for muscles to swell • Compress the nerve • Sometimes it is a structural abnormality • Acromion Process hooks downward to close space

  20. Shoulder Impingement

  21. Shoulder Impingement

  22. Homework • Read 209-210 • Possibly, maybe, a tiny quiz to start the class (Pay attention to pictures) • Create flash cards for all muscles covered today in class • Deltoid • Pectoralis Major • Biceps Brachii • Rotator Cuff

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