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Stack #39430
Upper Body Muscles
Muscle | Actions | Lever | Advantages |
---|---|---|---|
rhomboids | retraction, depression, downward rotation | type I | mechanical advantage, high force potential |
levator scapulae | scapula: elevation, downward rotation, abduction, retraction spine: lateral flexion, rotation | Type III | high force, low ROM, mechanical advantage |
upper trapezius | neck: extension, lateral flexion, rotation scapula: elevation | Type I | mechanical advantage, low force, low velocity |
middle trapezius | retraction, elevation, upward rotation | Type III | low velocity, good force, mechanical advantage |
lower trapezius | upward rotation, adduction, depression | Type I | mechanical advantage, high force, high velocity |
serratus anterior | abduction, upward rotation, depression | Type III | high force, ROM, moderate velocity |
latissimus dorsi | adduction, internal and external rotation, extension, horizontal abduction | Type III | high force and velocity, hybrid ROM and mechanical advantage |
anterior deltoid | abduction, flexion, internal rotation and horizontal adduction | (blank) | (blank) |
biceps brachi | elbow and shoulder flexion, supination, weak horizontal adduction | Type III | high force and velocity, mechanical advantage |
brachialis | flexion | Type III | ROM, low force, low velocity |
supraspinatus | abduction and stabilization | Type I | low force, low velocity, ROM |
infraspinatus | external rotation and horizontal abduction | (blank) | (blank) |
subscapularis | internal rotation and stabilization | Type III | high force, low velocity, hybrid |
teres minor | external rotation and horizontal abduction | (blank) | (blank) |
teres major | internal rotation, extension and adduction | (blank) | (blank) |
pectoralis major | horizontal flexion, horizontal adduction, internal rotation, adduction, flexion, abduction scapula: downward rotation, depression, and initial protraction | Type III | high force, moderate velocity, mechanical advantage |
pectoralis minor | abduction, downward rotation, depression | (blank) | (blank) |
triceps brachii | shoulder extension, adduction, elbow flexion, supinator | Type I | ROM, high velocity, high force |
brachioradialis | flexion, supination and pronation initiator | Type II | ROM, low velocity and force |
pronator teres, pronator quadratus, and flexor carpi radialis | internal rotation | (blank) | (blank) |
sternocleidomastoid | flexion, rotation, lateral flexion, extension | (blank) | (blank) |
lateral deltoid | abduction, flexion, transverse abduction | (blank) | (blank) |
posterior deltoid | external rotation, extension, transverse | (blank) | (blank) |
supinator and biceps brachii | external rotation | (blank) | (blank) |
flexor carpi radialis, flexor carpi ulnaris, palmaris longus, flexor pollicus longus, flexor digitorum profundus and superficialis | wrist flexors | (blank) | (blank) |
extensor digitorum, carpi radialis longus and brevis, carpi ulnaris, indicis, digiti minimi, pollicus longus and brevis | wrist extensors | (blank) | (blank) |
penis | erection | (blank) | (blank) |