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MM Actions

Muscles and their actions

QuestionAnswer
Gluteus Maximus Extension and lateral rotation of hip or thigh
Gluteus Medius Abducts thigh
Gluteus Minimus Abducts thigh
Glueteus minimus Abducts thigh, medially rotates hip
Tensor fasciae latae Flex, abduct, and medially rotate hip
Piriformis Lateral rotation of hip or thigh, some abduction
Gemellus Superior Lateral rotation of hip or thigh, some abduction
Gemellus Inferior Lateral rotation of hip, some abduction
Quadratus femoris Lateral rotation of thigh
Obturator externus Lateral rotation of thigh
Psoas major flexes thigh, flexes trunk or hip
Iliacus Flexes hip
Satorius Flexes leg and thigh
Rectus femorus Extension of leg
Vastus lateralis, medialis, intermedius Extension of leg or knee
Gracilis Flexes knee
Pectineus Adducts, flexes hip (thigh)
Adductor longus Adducts, flexes hip
Adductor brevis Adducts hip
Adductor magnus Adducts hip
Bicep femoris Flexes leg and extends thigh
Semitendinosus Flexes leg and extends thigh
Semimembranosus Flexes leg and extends thigh
Tibialis anterior Dorsiflexes and inverts foot
Extensor digitorum longus Extends digits 2-5, dorsiflexes foot
Extensor hallicus longus Extends hallux, dorsiflexes and inverts foot
Fibularis tertius (peroneus) Dorsiflexes and everts foot
Fibularis longus and brevis Plantar flexes and everts foot
Gastrocnemius Flexes leg, plantar flexes foot
Soleus Plantar flexes foot
Plantaris Flexes leg, plantar flexes foot
Popliteus Flexes leg, rotates tibia medially
Flexor hallucis longus Flexes hallux, plantar flexes foot
Flexor digitorum longus Flexes digits 2-5, plantar flexes and inverts foot
Tibialis Posterior Plantar flexes and inverts foot
Extensor digitorum brevis extends digits 1-4
Pronator Teres (Anterior Forearm superficial) Pronates forearm and flexes elbow
Flexor carpi radialis (Anterior Forearm superficial) Flexes wrist and abducts hand
Palmaris longus (Anterior forearm superficial) Flexes wrist
Flexor carpi ulnaris (Anterior forearm superficial) Flexes wrist and adducts hand
Flexor digitorum superficialis (Anterior forearm superficial) Flexes digits 2-5 and flexes wrist
Flexor digitorum profundus (Anterior forearm deep) Flexes digitis 2-5 and flexes wrist
Flexor pollicis longus (Anterior forearm deep) Flexes first digit and flexes wrist
Pronator quadratus (Anterior forearm deep) Pronates forearm
Brachioradialis (Posterior forearm superficial) Flexes forearm (elbow)
Extensor Carpi Radialis Longus (Posterior forearm superficial) Extends and abducts hand
Extensor carpi radialis brevis (Posterior forearm superficial) Extends and abducts hand
Extensor digitorum (PFS) Extends fingers, extends wrist
Extensor digiti minimi (PFS) Extends digiti minimi and wrist
Extensor carpi ulnaris (PFS) Extends and adducts hand
Anconeus (PFS) Assists in extension of forearm
Aductor pollicis longus (PFD) Adbucts and extends thumb
Extensor pollicis brevis (PFD) Extends thumb
Extensor pollicis longus (PFD) Extends thumb
Extendor indicis (PFD) Helps extend index finger
Abductor pollics brevis Abducts thumb
Opponens pollicis Abducts, flexes, rotates first metacarpal
Flexor pollicis brevis Flexes thumb
Adductor pollicis Adducts thumb
Palmaris brevis Wrinkles skin
Abductor digiti minimi Abducts little finger
Flexor digiti minimi brevis Flexes little finger
Opponens digiti minimi Abducts, flexes, rotates 5th metacarpal
Lumbricals Flex MP joints 2-5, extend IP 2-5
Dorsal interossei Abducts fingers
Palmar interossei Adduct fingers
Teres major Adducts, extends, and medially rotates arm
Teres Minor Lateral rotation of humerus
Infraspinatus Lateral rotates humerus
Supraspinatus Abducts humerus
Subscapularis Medially rotates humerus
Latissimus Dorsi Adducts, extends, and medially rotates humerus
Pectoralis Major Adducts and medially rotates humerus
Pectoralis Minor Protracts Scapula
Subclavius Fixes Clavicle
Trapezius Elevates, retracts scapula
Levator Scapulae Elevates scapula
Rhomboid Retracts Scapula
Serratus Anterior Holds scapula to body
Tricep brachii extends elbow
Brachialis Prime mover for flexing elbow
Bicep brachii Supinates forearm, flexes forearm
Coracobrachialis Flexion and addcution of arm
Deltoid Anterior- Flexes and medially rotates armMiddle- Abducts armPosterior- Extends and laterally rotates arm
Created by: jeffjan01 on 2009-10-07



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