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Muscles SCC

Muscles of the head, neck, abdomen, arm and leg

MusclesOriginInsertionAction
Occipitofrontalis occipital skin of eyebrow, nose elevates brows; moves scalp
Orbicularis Oculi maxilla, frontal encircles eye, near orgin closes eye
Orbicularis Oris maxilla, mandible lips closes lips
Buccinator maxilla, mandible angle of mouth compresses cheeks
Zygomaticus zygomatic bone angle of mouth, upper lip elevate angle of mouth, upper lip
Levator Labii Superioris maxilla upper lip, nose elevates upper lip, nose
Depressor Anguli Oris Mandible Lower lip near angle Depresses angle of mouth
Temporalis Temporal aspect of skull mandible raises jaw
Masseter zygomatic arch mandible raises jaw
sternocleidomastoid sternum, clavicle mastoid process (skull) rotates, extends head
Trapezius skull, upper vertebral column scapula extends head, neck
Pterygoids inteferior aspect of skull mandible medial raises jaw; lateral lowers jaw
Erector Spinae (3) Vertebrae, pelvis superior verterbrae, ribs holds body upright
Deep Back Muscles Vertebrae Vertebrae Flex or extend trunk
Scalenes Cervical vertebrae First and Second Ribs Elevate ribs; expand thorax
Extrenal Intercostals Ribs Edge of next rib (inferiorly) Compress thorax
Internal Intercostals Ribs Edge of next rib (superiorly) Expand Thorax
Rectus Abdominis Pubis Inferior thoracic cage Flexes waist
External Abdominal Oblique Inferior thoracic cage Midline of abdomen Compresses abdomen
Internal Abdominal Oblique Pelvis Midline of abdomen Compresses abdomen
Transversus Abdominus Vertebrae, pelvis, ribs Midline of abdomen Compresses Abdomen
Trapezius Skull, upper vertebral column Scapula Extends head, neck; rotates scapula
Levator Scapulae Vertebrae Scapula Elecates Scapula
Rhomboids Vertebrae Scapula Retract Scapula
Serratus Anterior Ribs Scapula Protracts Scapula
Pectoralis Minor Ribs Scapula Depresses Scapula
Pectoralis Major Ribs, Clavicle Humerus Flexes shoulder; adducts arm
Teres Major Scapula Humerus Extends shoulder; adducts, rotates arm
Infraspinatus Scapula Humerus Extends, rotates arm
Supraspinatus Scapula Humerus Abducts arm
Subscapularis Scapula Humerous Extends, rotates arm
Teres Minor Scapula Humerous Adducts, rotates arm
Deltoid Sscapula, clavicle Humerous Abducts arm; flexes, extends shoulder
Triceps Brachii Humerous, scapula Ulna Extends Forearm
Biceps Brachii Humerous, scapula Radius Flexes, supinates forearm
Brachialis Humerus Ulna Flexes forearm
Pronators (2) Ulna Radius Pronate forearm
Palmaris Longus Humerus (medial epicondyles) Aponeurosis over palm of hand Tightens skin of palm
Fexor Carpi Ulnaris Humerus (medial epidondyle) Carpal bone Flexes, abducts wrist
Flexor Carpi Radialis Humerus (medial epicondyle), ulna, radius Phalanges Flex fingers
Brachioradialis Humerus Radius (distal) Flexes, pronates forearm
Supinator Ulna Radius Supinates forearm
Extensor Carpi Ulanris Humerus (lateral epicondyle) Metacarpal Bones Extends, abducts wrist
Extensor Carpi Radialis (2) Humerus (lateral epicondyle) Metacarpal Bones Extend, abduct wrist
Extensor Digitorum Humerus (lateral epicondyle) Phalanges Extends Fingers
Iliopsoas Ilium, vertebrae Femur Flexes hip
Tensor Fasciae Latae Hip Tibia Flexes hip; abducts thigh
Gluteus Maximus Hip Femur Extends hip
Gluteus Medius Hip Femur Abducts thigh
Rectus Femoris Ilium Tibia Extends knee; flexes hip
Vastus Lateralis Femur Tibia Extends Knee
Vastus Medialis Femur Tibia Extends knee
Vastus Intermedius Femur Tibia Extends knee
Sartorius Ilium Tibia Flexes hip and knee; rotates thigh
Biceps Femoris Ischium, femur fibula flexes knee; extends hip
Semimembranosus Ischium Tibia Flexes Knee; extends hip
Semitendinosus Ischium Tibia Flexes knee; extends hip
Adductor Longus Pubis Femur Adducts thigh
Gracilis Pubis Tibia Adducts thigh
Tibialis Anterior Tibia Metatarsal Bones Extends (dorsiflexes) ankle (foot)
Extensor Digitorum Longus Tibia Phalanges Extends toe joints
Gastrocnemius Femur Calcaneus (Plantar) flexes ankle (foot)
Soleus Tibia, fibula Calcaneus (Plantar) flexes ankle (foot)
Peroneus (3) Tibia, fibula Tarsal, metatarsal bones Flex, evert ankle (foot)
Created by: newkidinstlouie
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