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Muscle Functions

Muscles and Muscle Functions of the Upper and Lower Extremities

QuestionAnswer
Rhomboids Retraction of Scapula, holds Scapula in place
Levator Scapulae Elevation of Scapula (and shoulder) and holds Scapula in place
Serratus Anterior Protraction and upward rotation os Scapula
Pectoralis Minor Pushes clavicle back and holds it in place
Supraspinatus Lateral rotation of the shoulder
Infraspinatus Lateral rotation of the shoulder
Teres Minor Lateral rotation of the shoulder
Subscapularis Anterior of scapula, causes medial rotation of the shoulder
Deltoid Flexs, Extends and Abducts the shoulder
Pectoralis Major Flexs shoulder
Latissimus Dorsi Slight shoulder rotator and major shoulder extensor
Teres Major Medial rotator of the shoulder
Coracobrachialis Aids slightly in adduction and flexion of the shoulder
Biceps Brachii Aids in flexion of the shoulder and is the major flexor of the elbow, also aids in elbow supination
Triceps Brachii Long head aids in adduction of the shoulder, major elbow extensor
Brachialis Elbow flexor and supination
Brachioradialis Aids in flexion of the elbow and rapid extension when countering centrifigal forces
Pronator Teres Aids in elbow flexion and elbow pronation
Anconeus The anconeus is an elbow extensor
Supinator Allows for supination of the forearm
Pronator Quadratus Main pronator of the elbow
Flexor Digitorum Profundus Wrist flexor
Flexor Digitorum Longus Wrist flexor
Flexor Digitorum Superficialis Wrist flexor
Flexor Carpi Ulnaris Wrist flexor
Palmaris Longus Wrist flexor
Flexor Carpi Radialis Wrist flexor
Extensor Indicis Wrist extensor
Gluteus Maximus Part of the gluteal group, rotates and extends hip
Gluteus Medius Part of the gluteal group, allow adduction of the hip
Gluteus Minimus Part of the gluteal group, allows adduction of the hip
Tensor Fasciae Lata Part of the gluteal group, allows adduction of the hip
Piriformis Part of the gluteal group, allows external rotation of hip
Obturator Internus Part of the gluteal group, allows external rotation of hip
Obterator Externus Part of the gluteal group, allows external rotation of hip
Quadratus Femoris Part of the gluteal group, allows external rotation of hip
Gemellus Superior Part of the gluteal group, allows external rotation of hip
Gemellus Inferior Part of the gluteal group, allows external rotation of hip
Semimembranosus One of three hamstring muscles, acts as an extendor of the hip joint and flexor of the knee joint
Semitendinosus Part of the hamstring group, extensor of the hip joint and flexor of the knee joint
Biceps Femoris Part of the hamstring group, Extensor of the hip and flexor of the knee
Pectineus Adductor of the hip
Adductor Brevis Adductor of the hip
Adductor Longus Adductor of the hip
Adductor Magnus Adductor of the hip
Gracilis Adductor of the hip and weak knee flexor
Obturator Externus Adductor of the hip
Sartorius Flexor of the hip joint and flexor of the knee joint
Rectus Femoris Part of the 'Quads' group. Flexor of the hip joint and Extensor of the knee joint
Vastus Group (Lateralis, Intermedius, Medialis) Part of the group of 'quads'. Extensor of the knee.
Iliopsoas Most powerful flexor of the hip
Tibialis Anterior Allows dorsiflexion and inversion of the foot
Extensor Digitorum Longus Allows dorsiflexion
Extensor Hallucis Longus Allows dorsiflexion
Fibularis Tertius Allows dorsiflexion
Fibularis Longus Allows plantar flexion and eversion of the foot
Fibularis Brevus Allows plantar flexion and eversion of the foot
Tibialis Posterior Allows plantarflexion
Flexor Digitorum Longus Allows plantarflexion
Flexor Hallucis Longus Allows plantarflexion
Popliteus Rotates the tibia medially, aids in knee flexion
Plantaris Acts as a knee flexor
Soleus Acts as a knee flexor
Created by: meaghannf