Term
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Definition
| elevates ribs for respiration, rotates to side opposite of contraction, bilaterally flexes the neck |
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Term
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Definition
| rotates to side opposite of contraction, laterally flexes to contracted side, can flex or extend the cranio-cervical region |
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Term
| suprahyoids and infrahyoids |
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Definition
| elevates and depresses the hyoid, respectively |
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Term
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Definition
| depresses floor of thorax, inspiration |
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Term
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Definition
| elevates ribs for INSPIRATION |
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Term
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Definition
| depresses ribs for EXPIRATION |
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Term
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Definition
| upper fibers elevate and upwards rotate scapula, middle fibers retract scapula, and lower fibers rotate scapula upward |
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Term
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Definition
| adducts and medially rotates humerus, extends from flexed position, and downwardly rotates scapula |
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Term
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Definition
| assists in stabilizing the clavicle and elevates 1st rib |
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Term
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Definition
| adducts and horizontally adducts humerus, medially rotates humerus, flexion of arm from extension, extends the arm from flexion |
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Term
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Definition
| depresses and downwardly rotates scapula, assists in scapular protraction from a retracted position, retracts scapula |
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Term
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Definition
| elevates scapula, extends/laterally flexes the head |
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Term
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Definition
| retract, downward rotate, and fixes the scapula |
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Term
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Definition
- retracts, downwardly rotates, and fixes the scapula
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Term
| serratus anterior (boxer's muscle) |
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Definition
- protract scapula
- stabilize scapula
- assists in upward rotation
- Push up +, punches
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Term
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Definition
- abducts arm (middle portion)
- flexion and medial rotation (anterior portion)
- extension and lateral rotation (posterior portion)
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Term
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Definition
- abduction of arm
- stabilizes glenohumeral joint
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Term
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Definition
- external rotation of the humerus
- stabilizes the glenohumeral joint
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Term
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Definition
- lateral rotation of the humerus
- Adduction
- stabilizes the glenohumeral joint
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Term
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Definition
- medial rotation of the humerus
- stabilizes the glenohumeral joint
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Term
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Definition
- adduction
- medial rotation
- extension from a flexed position
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Term
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Definition
- flexes the humerus
- adduct the humerus
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Term
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Definition
- flexes the elbow (*more when supinated)
- supinates forearm
- stabilizes anterior aspect of shoulder
- flexes shoulder
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Term
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Definition
- elbow flexion (*more when pronated)
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Term
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Definition
- Long - extends the shoulder and elbow (adducts the arm)
- Lateral and medial - extends the forearm at the elbow
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Term
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Definition
- flexes the forearm at the elbow (*more when in a “neutral” forearm position – half way b/w pronation and supination)
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Term
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Definition
- extends the forearm at the elbow
- supports the elbow when in full extension
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Term
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Definition
- pronates forearm
- weakly flexes the elbow
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Term
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Definition
- flexes the wrist
- radially deviates (abducts) the wrist
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Term
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Definition
- Flexes the wrist
- Tenses the palmar fascia
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Term
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Definition
- flexes the hand at the wrist
- ulnarly deviates (adducts) the wrist
- stabilizes wrist to permit powerful thumb motion
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Term
| flexor digitorum superficialis |
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Definition
- flexes the proximal and middle phalanges (MCP and PIP joints)
- flexes the wrist
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Term
| flexor digitorum profundus |
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Definition
- flexes the distal IP joints (DIP joints).
- Also can flex the MCP and PIP joints)
- flexes the wrist
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Term
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Definition
- flexes the distal phalanx of the thumb (IP joint)
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Term
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Definition
- pronates the forearm and hand
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Term
| extensor carpi radialis longus |
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Definition
- extends the the wrist
- radially deviates (abducts) the hand
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Term
| extensor carpi radialis brevis |
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Definition
- extends the wrist
- radially deviates the hand at the wrist
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Term
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Definition
- extends the four digits
- extends the wrist
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Term
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Definition
- extends the 5th digit and wrist
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Term
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Definition
- extends the hand at the wrist
- adducts the hand at the wrist
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Term
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Definition
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Term
| ABductor pollicis longus (snuff box) |
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Definition
- abducts the thumb
- extends the thumb
- radially deviates (abducts) the hand at the wrist
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Term
| extensor pollicis brevis (snuff box) |
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Definition
- extends the proximal phalanx and 1st metacarpal of the thumb
- radially deviates (abducts) the hand at the wrist
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Term
| extensor pollicis longus (snuff box) |
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Definition
- extends distal phalanx of thumb
- extends proximal phalanx of thumb
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Term
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Definition
- Extends index finger
- assists to extend the hand at the wrist
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Term
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Definition
| abducts thumb at the McP joint |
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Term
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Definition
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Term
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Definition
| opposes the thumb to the finger, lies beneath ABductor pollicis brevis |
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Term
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Definition
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Term
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Definition
| ABducts 5th digit, and assists to flex the 5th digit |
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Term
| flexor digiti minimi brevis |
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Definition
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Term
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Definition
| opposes 5th digit, and helps "cup" the palm |
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Term
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Definition
| adducts the fingers, lies between metacarpals |
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Term
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Definition
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Term
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Definition
| flexes fingers, extends middle and distal phalanges |
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