The Upper Extremity

THE UPPER EXTREMITY

DO NOW

• List as many muscles in the arm as you can

HOMEWORK REVIEW

• Clear your desk• 1 Question quiz

• What is the fleshy muscle of the arm that is a favorite for intramuscular injections (shots)?• Write on piece of paper with name and pass it in

HOMEWORK

• Create Flashcards for the following muscles• Triceps Brachii• Brachialis• Brachioradialis• Pronator Teres• Extensor Carpi Radialis• Extensor Carpi Ulnaris

REVIEW

REVIEW

• Deltoid• Pectoralis Major• Biceps Brachii• Rotator Cuff• Supraspinatus• Infraspinatus• Subscapularis• Teres Minor

INJURIES OF THE SHOULDER

• Biceps Tondonitis• Shoulder Impingement

BICEPS TENDONITIS

• Overuse of the biceps• Opposite of overuse?

• 2 origins of the bicep• Coracoid process• Glenoid tubercle

• Very common in swimmers, pitchers

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

SHOULDER IMPINGEMENT

SHOULDER IMPINGEMENT

THE ELBOW/FOREARM

ELBOW/FOREARM

• All “flexors” are palmar side of arm • Forearm

• Extensors are opposite and on the dorsal side of the forearm

TRICEPS BRACHII

• O: Glenoid Cavity of Scapula• I: Olecranon process of ulna• A: Forearm extensor; antagonist of biceps brachii

TRICEPS BRACHII

BRACHIALIS

• O: Anterior surface of distal humerus• I: Coronoid process of ulna• A: Arm flexor

BRACHIALIS

BRACHIORADIALIS

• O: Distal humerus• I: Base of styloid process of radius• A: Forearm flexor (thumb up)

BRACHIORADIALIS

EXTENSOR CARPI RADIALIS

• O: Lateral humerus• I: Second and third metacarpal• A: Extends and abducts wrist

Extensor Carpi Ulnaris• O: Lateral epicondyle of humerus• I: 5th metacarpal• A: Extends and adducts the wrist

ULNARIS/RADIALIS

MOVEMENT ANALYSIS PROJECT

• Each group will analyze a movement of their choice• Sports/Functional movement

• Groups of no more than 4, but no less than 2

HOMEWORK

• Create your group• Come to class with the movement your group will

analyze