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Question | Answer |
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Biceps Brachii | Flex the elbow, Supinate the Forearm, Flex the Shoulder |
Coracobrachialis | Flex the shoulder, Adduct the shoulder |
Deltoid | Abduct the shoulder, Horizontally abducts shoulder, Horizontally adducts shoulder, Flex shoulder, Extends shoulder, Medially rotate shoulder, Laterally rotate shoulder. |
Latissimus Dorsi & Teres Major | Extend shoulder, Adduct shoulder, Medially rotate shoulder |
Levator Scapula | Elevate scapula, Downwardly rotate scapula, Laterally flex head/neck, Ipsilaterally rotate head/neck, Extend head/neck |
Pectoralis Major | Adduct shoulder, Medially rotate shoulder, Flex shoulder, Extend shoulder, Horizontally adduct shoulder, Assist in elevating Thorax in forced inhalation |
Pectoralis Minor | Depress scapula, Abduct scapula, Tilt the scapula anteriorly, Assist in forced inhalation |
Subscapularis | Medially rotate shoulder, Stabilize head of Humerus in Glenoid cavity |
Supraspinatus | Abduct shoulder, Stabilize head of Humerus in glenoid cavity |
Infraspinatus & Teres Minor | Adduct shoulder, Extend shoulder, Laterally rotate shoulder, Horizontally abduct shoulder, Stabilize head of Humerus in glenoid cavity |
Rhomboids | Adduct scapula, Elevate scapula, Downwardly rotate scapula |
Serratus Anterior | Abduct scapula, Depress scapula, Hold medial border of scapula against rib cage, act in forced inhalation(if scapula is fixed) |
Trapezius | Extend Head/neck, Laterally flex Head/neck, Contralaterally rotate Head/neck, Elevate scapula, Upwardly rotate scapula, Adduct scapula, Stabilize scapula, Depress scapula |
Triceps Brachii | Extend elbow, Extend shoulder, Adduct shoulder |
Anconeus | Extend elbow |
Brachialis | Flex elbow |
Brachioradialis | Flex elbow, Assist to pronate/supinate forearm when resisted |
Extensor Carpi Radialis Longus & Brevis | Extend wrist, Abduct wrist, Assist to flex elbow |
Extensor Carpi Ulnaris | Extend wrist, Adduct wrist |
Extensor Digitorum (Communis) | Extend 2nd-5th fingers, Assist to extend wrist |
Flexor Carpi Radialis | Flex wrist, Abduct wrist, Flex elbow |
Palmaris Longus | Tense palmar fascia, Flex wrist, Flex elbow |
Flexor Carpi Ulnaris | Flex wrist, Adduct wrist, Assist to flex elbow |
Flexor Digitorum Superficialis (sublimes) | Flex 2nd-5th fingers, Flex wrist |
Abductor Pollicus Longus | Abduct thumb, Extend thumb |
Extensor Pollicus Longus & Brevis | Extend thumb, Assist to extend thumb |
Flexor Pollicis Longus | Flex thumb, Assist to flex thumb |
Pronator Quadratus | Pronate forearm |
Pronator Teres | Pronate forearm, assist to flex elbow |
Supinator | Supinate forearm |
Rectus Abdominis | Flex the vertebral column |
External Oblique | Flex the vertebral column, Compress abdominal contents, Laterally flex vertebral column, Contralaterally rotate vertebral column |
Internal Oblique | Flex the vertebral column, Compress abdominal contents, Laterally flex vertebral column, Ipsilaterally rotate vertebral column |
Transverse Abdominus | Compress abdominal contents |
Diaphragm | Draw down the central tendon of the Diaphragm, Increase volume of Thoracic cavity during inhalation |
Erector Spinae Group(Spinalis, Longissimus, Illiocostalis) | Laterally flex vertebral column to the same side, Extend vertebral column |
Intercostals (External & Internal) | Assist with inhalation by drawing ribs superiorly increasing the space of the Thoracic cavity. Assist with exhalation by drawing ribs inferiorly decreasing the space of Thoracic cavity. |
Quadratus Lumborum "QL" | Laterally tilt pelvis, Laterally flex vertebral column, Assist to extend vertebral column, Fix the last rib during exhalation/forced exhalation. |
Splenius Capitis & Splenius Cervicis | Ipsilaterally rotate head/neck, Laterally flex head/neck, Extend head/neck |
Suboccipitals 1 of 4 | Rock and tilt head back into extension, Ipsilaterally rotate head |
Masseter | Elevate the mandible |
Occipitofrontalis | Raises eyebrows and wrinkle forehead, Anchor and retract the galea posteriorly |
Scalenes (Anterior, Middle, & Posterior) | Laterally flex head/neck, Contralaterally rotate head/neck, Flex head/neck, Elevate ribs during inhalation |
Sternocleidomastoid | Laterally flex head/neck, Contralaterally rotate head/neck, Flex head/neck, Elevate ribs during inhalation |
Temporalis | Elevate mandible, Retract mandible |
Zygomaticus Major | Elevates and draws angle of mouth laterally |
Adductor Magnus | Flex hip, Extend hip, Adduct hip, Medially rotate hip |
Adductor Longus/Brevis & Pectineus | Flex hip, Adduct hip, Medially rotate hip |
Gracilis | Adduct hip, Medially rotate hip, Flex knee, Medially rotate flexed knee |
Gluteus Maximus | Extend hip, Laterally rotate hip, Abduct hip, Adduct hip |
Gluteus Medius | Extend hip, Laterally rotate hip, Abduct hip, Flex hip, Medially rotate hip |
Gluteus Minimus | Abduct hip, Flex hip, Medially rotate hip |
Biceps Femoris | Flex knee, Laterally rotate flexed knee, Extend hip, Laterally rotate hip, Tilt the pelvis posteriorly |
Semitendinosus & Semimembranosus | Flex knee, Medially rotate flexed knee, Extend hip, Medially rotate hip, Tilt the pelvis posteriorly |
Psoas Major & Iliacus | Flex hip, Laterally rotate hip, Adduct hip |
Piriformis | Laterally rotate hip, Abduct hip when hip is flexed |
Quadratus Femoris, Obturator Internus, Obturator Externus, Gemellus Superior/Inferior | Laterally rotate hip |
Rectus Femoris | Extend knee, Flex hip |
Vastus Lateralis, Vastus Intermedius, Vastus Medialis | Extend knee |
Sartorius | Flex hip, Abduct hip, Laterally rotate hip, Flex knee, Medially rotate flexed knee |
Tensor Fasciae Latae | Flex hip, Abduct hip, Medially rotate hip |
Tibialis Anterior | Invert Foot, Dorsiflex ankle |
Extensor Digitorum Longus | Extend the second through fifth toes, Dorsiflex ankle, Evert foot |
Extensor Hallucis Longus | Extend first toe, Dorsiflex ankle, Invert foot |
Tibialis Posterior | Invert foot, Plantar flex ankle |
Flexor Digitorum Longus | Flex the second through fifth toes, plantar flexion of ankle, Invert foot |
Flexor Hallucis Longus | Flex first toe, plantar flexion of ankle, Invert foot |
Gastrocnemius | Flex knee, Plantar flex ankle |
Peroneus Longus/Peroneus Brevis | Evert foot, Assist to plantar flex ankle |
Plantaris | Plantar flexion of ankle, Flexion of knee |
Popliteus | Medially rotate the flexed knee, Flex knee |
Soleus | Plantar flex ankle |