Set 2 Flashcards
Triceps Brachii + Anconeus
Innervation
Radial n. (C7-8)
What are the PRIMARY ELBOW EXTENSORS?
Triceps Brachii + Anconeus
Triceps Brachii + Anconeus
Primary Open Action
- Elbow extension
- PRIMARY ELBOW EXTENSOR
Triceps Brachii + Anconeus
Secondary Open Action
- Shoulder extension (long head)
- Shoulder adduction (long head)
- Anconeus provides abduction force to elbow during forced pronation
Biceps Brachii
Innervation
Musculocutaneous n. (C5,6)
Biceps Brachii
Primary Open Action
- Forearm (elbow) flexion
- PRIMARY FOREARM FLEXOR IN SUPINATED POSITION
Biceps Brachii
Secondary Open Action
- Forearm supination during rapid or resisted flexion
- Assists in shoulder flexion, abduction, and IR
What is the PRIMARY FOREARM FLEXOR IN SUPINATED POSITION?
Biceps Brachii
Brachialis
Innervation
Musculocutaneous n. + br. from Radial n. (C5,6)
Brachialis
Primary Open Action
- Forearm (elbow) flexion
- PRIMARY FOREARM FLEXOR IN PRONATED POSITION
What is the PRIMARY FOREARM FLEXOR IN PRONATION?
Brachialis
Brachioradialis
Innervation
Radial n. (C5,6)
Brachioradialis
Primary Open Action
Forearm (elbow) flexion
Brachioradialis
Secondary Open Action
Assists with pronation of forearm
Pronator Teres
Innervation
Median n. (C6,7)
Pronator Teres
Primary Open Action
Forearm pronation, especially in rapid or forceful pronation
Pronator Teres
Secondary Open Action
Assists in elbow flexion
Pronator Quadratus
Innervation
Median (AIN) (C8T1)
Pronator Quadratus
Primary Open Action
- Forearm pronation
- PRIMARY FOREARM PRONATOR FOR NORMAL, UN-RESISTED PRONATION
What is the PRIMARY FOREARM PRONATOR for normal, un-resisted pronation?
Pronator Quadratus