Upper Extremity Actions Flashcards
Upper Trapezius with origin fixed
Elevation of Scapula
Scapular upward rotation
Upper Trapezius with insertion fixed - bilateral
Cervical Extension
Capital Extension
Upper Trapezius with insertion fixed - unilateral
Extension and lateral flexion of head and neck to the same side
Rotation of head and neck to the opposite side
Middle Trapezius
Adduction of Scapula
Lower Trapezius
Depression of Scapula
Adduction of Scapula
Scapular upward rotation
Rhomboid Major and Minor
Scapular adduction
Scapular downward rotation
Scapular elevation
Serratus Anterior
Scapular abduction
Scapular upward rotation
Keeps medial border of scapula drawn anteriorly close to thoracic wall; prevents ‘winging’
Pectoralis Minor
Scapular protraction/abduction
Elevation of ribs in forced
inspiration with scapula fixed
by levator scapulae
Pectoralis Major Whole Muscle
Shoulder Adduction
Shoulder internal rotation
Elevation of thorax in forced inspiration (with upper extremities fixed)
Pectoralis Major Clavicular
Shoulder internal rotation
Shoulder flexion
Shoulder horizontal adduction
Pectoralis Major Sternocostal
Shoulder internal rotation
Shoulder flexion
Shoulder horizontal adduction
Subscapularis
Shoulder internal rotation
Stabilization of GH joint
Subclavius
Assist shoulder depression Depresses and moves clavicle forward
Deltoid Anterior
Shoulder flexion
Shoulder internal rotation, abduction
Shoulder horizontal adduction
Deltoid Middle
Shoulder Abduction
Deltoid Posterior
Shoulder extension
Shoulder external rotation, abduction
Shoulder horizontal abduction
Supraspinatus
Shoulder abduction
Stabilization of GH joint
Infraspinatus
Shoulder external rotation
Stabilization of GH joint
Teres Minor
Shoulder external rotation
Stabilization of GH joint
Teres Major
Shoulder extension (from a flexed position) Shoulder adduction Shoulder internal rotation
Coracobrachialis
Shoulder flexion
Shoulder adduction
Biceps Brachii
Shoulder flexion (not in book)
Elbow flexion
Forearm supination
Stabilization of GH joint
Brachialis
Elbow flexion
Triceps Brachii
Whole: Elbow extension
Long Head: also assists in shoulder extension
and adduction
Brachioradialis
Elbow flexion
Anconeus
Elbow extension (weak)
Supinator
Supination of forearm
Pronator Teres
Pronation of forearm
Assists elbow flexion
Pronator Quadratus
Pronation of forearm
Extensor Carpi Radialis Longus
Wrist extension
Radial (abduction) deviation
Assist elbow flexion
Extensor Carpi Radialis Brevis
Wrist extension
Assist radial deviation
Extensor Carpi Ulnaris
Wrist extension
Ulnar (adduction) deviation
Flexor Carpi Radialis
Wrist flexion
Radial deviation (abduction)
Assist elbow flexion
Assist forearm pronation
Palmaris Longus
Wrist flexion
Tenses palmar fascia
Flexor Carpi Ulnaris
Wrist flexion
Ulnar deviation (adduction)
Assist elbow flexion
Extensor Digitorum
MP extension (2-5 digits)
IP extension in conjunction with the hand intrinsics (2-5 digits); without the intrinsics produces MP hyperextension
Assist wrist extension
Extensor Indicis
MP extension of index finger
IP extension in conjunction with the hand intrinsics in the index finger Assist wrist extension
Flexor Digitorum Superficialis
PIP flexion (2-5 digits)
Assist MP flexion (2-5 digits)
Assist wrist flexion
Flexor Digitorum Profundus
DIP flexion (2-5 digits)
Assist MP and PIP flexion (2-5 digits)
Assist wrist flexion
Extensor Digiti Minimi
Little finger MP and IP extension in
conjunction with the hand
intrinsics in little finger
Assist wrist extension
Abductor Digiti Minimi
Little finger abduction
Assist little finger opposition
May assist little finger MCP flexion and IP extension
Flexor Digiti Minimi Brevis
Little finger MP flexion
Assist little finger opposition
Opponens Digiti Minimi
Little finger opposition
Palmaris Brevis
Corrugates skin on ulnar side of hand
Lumbricales
MP flexion and simultaneous IP
extension
4th lumbrical assist opposition of 5th digit
Dorsal Interossei
MP abduction at the index, middle and
ring fingers
Assist MP flexion Assist IP extension The 1st assist thumb adduction
Palmar Interossei
MP adduction at the index, ring and
little fingers
Assist MP flexion Assist IP extension Assist opposition of digit 5 (3rd interroseus)
Abductor Pollicis Longus
Thumb CMC abduction
Thumb CMC extension
Radial deviation
Assist wrist flexion (weak)
Extensor Pollicis Longus
Thumb IP extension
Assist thumb MP extension
Assist thumb CMC extension
Assist radial deviation
Extensor Pollicis Brevis
Thumb MP extension Thumb CMC extension Thumb CMC abduction Assist radial deviation Assist wrist extension
Flexor Pollicis Longus
Thumb IP flexion
Assist MP flexion
Assist CMC flexion
Assist wrist flexion
Flexor Pollicis Brevis
Thumb MP flexion
Thumb CMC flexion
Assist thumb opposition
Abductor Pollicis Brevis
Thumb CMC abduction
Thumb MP abduction
Assist thumb opposition
Assist thumb IP extension
Opponens Pollicis
Thumb CMC opposition (via simultaneous CMC flexion, abduction, and internal rotation)
Adductor Pollicis
Thumb CMC adduction
Assists thumb MP adduction
Assists thumb MP flexion