Major Muscles That Act at the Elbow and Forearm
Major Muscles That Act at the Elbow and Forearm
1. Biceps Brachii 2. Brachialis 3. Brachioradialis 4. Triceps Brachii 5. Pronator Teres 6. Pronator Quadratus 7. Supinator
Brachialis - Origin
Anterior humerus
Biceps Brachii - Selected Exercises
Arm curls, chin-ups, rock climbing, upright rowing
Brachialis - Selected Exercises
Arm curls, chin-ups, rock climbing, upright rowing (same as biceps brachii)
Brachioradialis - Selected Exercises
Arm curls, chin-ups, rock climbing, upright rowing (same as biceps brachii)
Brachioradialis - Origin
Distal 2/3 of lateral condyloid ridge of humerus
Pronator Quadratus - Insertion
Distal anterior surface of radius
Pronator Quadratus - Origin
Distal anterior surface of ulna
Pronator Teres - Origin
Epicondyle of medial humerus
Triceps Brachii - Primary Functions
Extension at elbow; arm extension (long head)
Brachialis - Primary Functions
Flexion at elbow
Pronator Teres - Primary Functions
Flexion at elbow and pronation at forearm
Biceps Brachii - Primary Functions
Flexion at elbow; supination at forearm
Brachioradialis - Primary Functions
Flexion at elbow; supinatoin at forearm
Supinator - Origin
Lateral, posterior epicondyle of humerus and supinator crest of ulna
Triceps Brachii - Origin
Long head: lower edge of glenoid cavity of scapula Lateral head: posterior humerus Short Head: distal 2/3 of posterior humerus
Biceps Brachii - Origin
Long head: tubercle above glenoid cavity Short head: coracoid process of scapula
Pronator Teres - Insertion
Middle 1/3 of lateral radius
Triceps Brachii - Insertion
Olecranon process of ulna
Pronator Quadratus - Primary Functions
Pronation at forearm
Pronator Teres - Selected Exercises
Pronation of forearm with dumbbell
Supinator - Insertion
Proximal, lateral surface of radius
Triceps Brachii - Selected Exercises
Push-ups, dips, bench press, shoulder press
Biceps Brachii - Insertion
Radial tuberosity
Pronator Quadratus - Selected Exercises
Resisted pronation
Supinator - Selected Exercises
Resisted supination
Brachioradialis - Insertion
Styloid process of radius
Supinator - Primary Functions
Supination at forearm
Brachialis - Insertion
Ulnar tuberosity and coronoid process of ulna