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MuscleActionAttachment (Origin)Attachment (Insertion)Innervation
Epicranius:Frontalis raises eyebrows aponeurosis Skin of eyebrows Facial
Epicranius:Occipitalis Pulls scalp post Occipital bone aponeurosis Facial
Orbicularis Oculi Close eye lids Frontal and maxillary bones Skin of eyelid Facial
Orbicularis Oris Close lips Maxilla and mandible Skin of mouth Facial
Zygomaticus Elevates corners of mouth Zygomatic bone Skin and muscle at corners of mouth Facial
Buccinator Draws corner of lips laterally Molar region of mandible and maxillae Orbicularis oris Facial
Mentalis Protrudes lower lip Anterior mandible Skin of chin Facial
Masseter Elevate mandible Zygomatic arch and maxilla Angle and ramus of mandible Trigeminal
Temporalis Elevate and retract mandible Temporal fossa Coronoid process of mandible Trigeminal
Platysma Depress mandible Fascia of chest Mandible Facial
Sternocleidomastoid Flex neck and rotate head Manubrium of sternum and clavicle Mastoid process of temporal bone Accessory
Scalenes Flex and rotate neck, elevate ribs Transverse process of cervical vertebrae Ribs 1 and 2 Cervical & brachial plexuses
Levator Scapulae Raises scapula Transverse process of cervical vertebr Sup border Scapula Cervical & brachial plexuses
Rhomboids Pulls scapula medially Spinous processes of C7-T3 Medial border of scapula Scapular
Pectoralis major Flexes and adducts arm Clavicle, sternum, ribs 1-6 Humerus Pectoral
Pectoralis minor Moves scapula forward Ribs 3-5 Coracoid process Pectoral
Deltoid Abduct Humerus Clavicle, acromion and spine of scapula Deltoid tuberosity Axillary
Teres major Extend, rotate, adduct humerus Scapula Humerus Scapular
Teres minor Rotate humerus Scapula Humerus Axillary
Supraspinatus Abduct humerus Supraspinous fossa Humerus Suprascapular
Infraspinatus Rotate humerus Infraspinous fossa Humerus Suprascapular
Subscapularis Rotate humerus Subscapular fossa Humerus Subscapularis
Trapezius Extends head, moves scapula Occiput, spinous process C7-T12 Scapular spine and acromion Accessory
Latissimus Dorsi Extend, abduct and rotate arm Spinous process T6-L5 Humerus Scapular
Triceps Brachii Forearm extension Glenoid cavity, radial groove of humerus Olecranon process of ulna Radial
Biceps Brachii Flexion of elbow and supination of forearm Coracoid process Radial tuberosity Musculocutaneous
Coracobrachialis Adduction and flexion at shoulder Coracoid process Shaft of humerus Musculocutaneous
Brachialis Flexor of elbow Humerus Coronoid process Musculocutaneous
Brachioradialis Synergist of elbow flexion Humerus Styloid process of radius Radial
Pronator teres Pronation of forearm M epicondyle of humerus, coronoid process of ulna Radius Median
Flexor carpi radialis Flexor of wrist M epicondyle of humerus Base of metacarpals 2 and 3 Median
Palmaris longus Flexor of wrist M epicondyle of humerus Palmar aponeurosis Median
Flexor carpi ulnaris Flexion and adduction of wrist M epicondyle of humerus and Olecranon of ulna Pisiform, hamate, and 5th metacarpal Ulnar
Extensor carpi radialis: brevis & longus Extend and abduct wrist L epicondyle of humerus Base of metacarpals 2 and 3 Radial
Extensor digitorum Finger extension L epicondyle of humerus Distal phalanges Radial
Extensor carpi ulnaris Extend and adduct wrist L epicondyle of humerus Base of metacarpal 5 Radial
Supinator Supinate arm L epicondyle of humerus; proximal ulna Proximal end of radius
Anconeus Extend elbow epicondyle of humerus Lateral aspect of Olecranon Radial
Sartorius Flex knee, abduct, laterally rotate thigh Iliac spine Tibia Femoral
Iliacus Flexion at hip Iliac fossa Just inferior to lesser trochanter Femoral
Psoas major Flexion at hip, lumbar intervertebrals Transverse process of T12-L5 Lesser trochanter of femur Anterior rami L1-L3
Adductors- magnus, longus, and brevis Adduct, medially rotate, flex thigh Ischium, pubis Femur Obturator
Gracilis Adduct thigh, medially rotate and flex knee Pubis Tibia Obturator
Quadriceps femoris Extend knee (all) Femoral
Rectus femoris (Quadriceps femoris) flex hip, extend knee Iliac spine and acetabulum Tibial tuberosity and patella Femoral
Vastus lateralis (Quadriceps femoris) extend knee Greater trochanter Tibial tuberosity and patella Femoral
Vastus medialis (Quadriceps femoris) extend knee Femur Tibial tuberosity and patella Femoral
Vastus intermedius (Quadriceps femoris) extend knee Femur Tibial tuberosity and patella Femoral
Tensor Fasciae Latae Flex, abduct thigh and medial rotation Ilium Iliotibial tract Gluteal
Gluteus Maximus Thigh extensor Ilium, sacrum, coccyx Gluteal tuberosity of femur Gluteal
Gluteus medius Abduct and medially rotate thigh Ilium Greater trochanter of femur Gluteal
Gluteus minimus Abduct and medially rotate thigh Ilium Greater trochanter of femur Gluteal
Piriformis Lateral rotation, abduction of hip Sacrum Greater trochanter Piriformis
Fibularis (peroneus) longus Plantar flexion Proximal fibula Metatarsal 1 and medial cuneiform Fibular (Peroneal)
Fibularis (peroneus) brevis Plantar flexion Distal fibula Metatarsal 5 Fibular (Peroneal)
Tibialis Anterior Dorsiflexion and inversion Tibia Tarsals and metatarsal 1 Fibular (Peroneal)
Extensor digitorum longus Toe extension, dorsiflexion Lateral condyle of tibia, proximal fibula Middle and distal phalanges 2-5 Fibular (Peroneal)
Gastrocnemius Plantar flexion Femur Calcaneus Tibial
Soleus Plantar flexion Tibia and fibula Calcaneus Tibial
Tibialis posterior Inversion, plantar flexion Tibia and fibula Tarsals, metatarsals Tibial
Popliteus Medial flexion and rotate knee Femur lateral condyle Proximal tibia Tibial
Hamstrings Extend thigh, flex knee, rotate leg Ischial tuberosity Tibial, sciatic
Biceps femoris (hamstring) Extend thigh, flex knee, rotate leg Ischial tuberosity Fibula and tibia Tibial, sciatic
Semitendinosus (hamstring) Extend thigh, flex knee, rotate leg Ischial tuberosity Tibia Tibial, sciatic
Semimembranosus(hamstring) Extend thigh, flex knee, rotate leg Ischial tuberosity Tibia and femur Tibial, sciatic
Pectoralis Minor Elevates upper ribs Ribs 3-5 Coracoid process Pectoral
Serratus Anterior Move scapula forward, rotate scapula Ribs 1-8 Medial Border Scapula Long thoracic
External Intercostals Elevate rib cage, aid inspiration Infer border rib above Superior border rib below Intercostal
Internal Intercostals Depress rib cage, aid expiration Supr border rib below Inferior border rib above Intercostal
Diaphragm Prime mover of inspiration, flattens when contracts, lengthens thoracic cavity Phrenic
Rectus Abdominis Flex and rotate vertebral column Pubic crest and symphysis Xiphoid process and ribs 5-7 (cartilage) Intercostal
External Oblique Flex and rotate vertebral column, trunk rotation and lateral flexion Ribs 5-12 Pubic crest and iliac crest, linea alba Intercostal
Internal Oblique Same as external oblique Iliac crest Ribs 9-12 (cartilage), linea alba Intercostal
Transversus Abdominis Compress abdominal contents Ribs 6-12 (cartilage) Pubic crest, linea alba Intercostal and Ilioinguinal
Trapezius Extend neck; raise, rotate, and adduct scapula Occipital bone and spinous process of thoracic vertebrae Acromion and spine of scapula Accessory
Latissimus Dorsi Arm extension, adduct and rotate arm Spinous process of T6-L5 Lateral clavicle, acromion, spine of scapula Thoracodorsal
Erector Spinae: Iliocostalis, Longissimus, Spinalis As a pair: Extend neck and vertebral column Transverse process of C7-T12 Occipital bone and spinous process of cervical vertebrae (dorsal primary rami of spinal nerves C1-S5)
Created by: AZD



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