Muscle Function Flashcards
UE Function: Brachialis
Elbow flexion
UE Function: Abductor Digiti Minimi (2)
- Abducts 5th digit
2. Flexion of 5th proximal phalanx
UE Function: Abductor Pollicis Brevis (2)
- Abducts thumb
2. CMC oppositino of thumb
UE Function: Abductor Pollicis Longus (2)
- Abducts thumb
2. Extends thumb
UE Function: Aconeus
Elbow extension
UE Function: Adductor Pollicis
Thumb adduction
UE Function: Biceps Brachii (3)
- Elbow flexion
- Shoulder flexion
- Supination (only when elbow is bent)
UE Function: Brachioradialis
Elbow flexion
UE Function: Coracobrachialis (2)
- Shoulder adduction
2. Shoulder flexion
UE Function: Deltoid (4)
- Abducts shoulder (beyond 15 degrees)
- Shoulder extension
- Shoulder flexion
- Stabilizes shoulder joint
UE Function: Dorsal Interossei (2)
- Abduction of digits
2. Aids lumbrical function
UE Function: Extensor Carpi Radialis Brevis (3)
- ABDucts wrist
- ADDucts wrist
- Extends wrist
UE Function: Extensor Carpi Radialis Longus (3)
- ABDucts wrist
- ADDucts wrist
- Extends wrist
UE Function: Extensor Carpi Ulnaris (3)
- ABDucts wrist
- ADDucts wrist
- Extends wrist
UE Function: Extensor Digiti Minimi
Extends the 5th finger
UE Function: Extensor Digitorum
Extends medial 4 digits
UE Function: Extensor Indicis
Extends the index finger
UE Function: Extensor Pollicis Brevis (2)
- ABDucts thumb
2. Extends thumbs
UE Function: Extensor Pollicis Longus (2)
- ABDucts thumb
2. Extends thumbs
UE Function: Flexor Carpi Radialis (2)
- Elbow flexion
2. Wrist flexion
UE Function: Flexor Carpi Ulnaris (2)
- Elbow flexion
2. Wrist flexion
UE Function: Flexor Digit Minimi Brevis
Flexion of 5th MCP joint
UE Function: Flexor Digitorum Profundus (4)
- DIP flexion
- MCP flexion
- PIP flexion
- Wrist flexion
UE Function: Flexor Digitorum Superficialis (4)
- Elbow flexion (slight)
- MCP flexion
- PIP flexion
- Wrist flexion
UE Function: Flexor Pollicis Brevis (3)
- Thumb flexion
- CMC opposition of thumb
- MCP opposition of thumb
UE Function: Flexor Pollicis Longus (4)
- Thumb CMC flexion
- Thumb IP flexion
- Thumb MCP flexion
- Wrist flexion
UE Function: Infraspinatus (2)
- External rotation
2. Shoulder ADDuction
UE Function: Latissimus Dorsi (3)
- Internal rotation
- Shoulder ADDuction
- Shoulder extension
UE Function: Levator Scapulae
Elevates scapula
UE Function: Lumbrical 1 & 2 (2)
- Flexes MCP of 2 & 3
2. Extends IP of 2 & 3
UE Function: Lumbrical 3 & 4 (2)
- Flexes MCP of 4 & 5
2. Extends IP of 4 & 5
UE Function: Opponens Digiti Minimi
Opposition of 5th Digit
UE Function: Opponens Pollicis
Opposition of thumb
UE Function: Palmar Interossei (2)
- ADDuction of digits
2. Aids in lumbrical function
UE Function: Palmaris Brevis
Aid in palmar gripping
UE Function: Palmaris Longus (2)
- Elbow flexion
2. Wrist flexion
UE Function: Pectoralis major (2)
- Internal rotation
2. Shoulder ADDuction
UE Function: Pectoralis minor (2)
- Elevates ribs
2. Stretches arm forward
UE Function: Pronator Quadratus
Pronation
UE Function: Pronator Teres
Pronation
UE Function: Rhomboids
Retract scapula
UE Function: Serratus Anterior (2)
- Protracts scapula
2. Rotates scapula
UE Function: Subscapularis (2)
- Internal rotation (beyond trunk)
2. Shoulder ADDuciton
UE Function: Supinator
Supination
UE Function: Supraspinatus
Shoulder abduction (1st 15 degrees)
UE Function: Teres Major
Stabilizes shoulder joint
UE Function: Teres Minor (2)
- External rotation
2. Shoulder ADDuction
UE Function: Trapezius (4)
- Depresses scapula
- Elevates scapula
- Retracts scapula
- Rotates scapula
UE Function: Triceps brachii (3)
- Elbow extension
- Shoulder ADDuction
- Shoulder extension
UE Muscle: Abduction of digits
Dorsal Interossei
UE Muscle: Abducts 5th digit
Abductor Digiti Minimi
UE Muscle: Abducts shoulder (beyond 15 degrees)
Deltoid
UE Muscle: Abducts thumb (4)
- Abductor Pollicis Brevis
- Abductor Pollicis Longus
- Extensor Pollicis Brevis
- Extensor Pollicis Longus
UE Muscle: Abducts wrist (3)
- Extensor Carpi Radialis Brevis
- Extensor Carpi Radialis Longus
- Extensor Carpi Ulnaris
UE Muscle: Adduction of digits
Palmar Interossei
UE Muscle: Adducts wrist (3)
- Extensor Carpi Radialis Brevis
- Extensor Carpi Radialis Longus
- Extensor Carpi Ulnaris
UE Muscle: Aid in palmar gripping
Palmaris Brevis
UE Muscle: Aids in lumbrical function (2)
- Palmar Interossei
2. Dorsal Interossei
UE Muscle: CMC opposition of thumb (2)
- Abductor Pollicis Brevis
2. Flexor Pollicis Brevis
UE Muscle: Depresses scapula
Trapezius
UE Muscle: DIP flexion
Flexor Digitorum Profundus
UE Muscle: Elbow extension (2)
- Aconeus
2. Triceps brachii