Muscles_Briana_Fay

Muscles_Briana_Fay - KEY: Italics indicate a muscle action...

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KEY: Italics – indicate a muscle action Bold-face – indicates a muscle that also has a characteristic origin ( O ) and insertion ( I ) Region 1: Head, Neck, and Back Trapezius – Elevate, adduct, and stabilize scapula; extend head Rhomboideus major – Elevate and adduct scapula Rhomboideus minor – Elevate and adduct scapula Levator scapulae – Elevate scapula Sternocleidomastoid – Rotate head, flex neck, elevate sternum Latissimus Dorsi – Extend, adduct, and medially rotate arm at shoulder Region 2: Calf Gastrocnemius (two heads) plantar flex foot; flex leg at knee O: Medial and lateral condyles of the femur I: Calcaneus Soleus Plantar flex foot O: Fibula, soleal line of tibia I: Calcaneus Plantaris – Plantar flex foot Popliteus – Medially rotate tibia Tibialis Anterior Dorsiflex and invert foot O: Lateral condyle and body of tibia I: First metatarsal and first cuneiform Peroneus (fibularis) longus – Evert foot Region 3: Upper Limb (scapula and posterior limb) Supraspinatus Abducts arm O: Supraspinous fossa of scapula I: Greater tubercle of humerus Infraspinatus Lateral rotation of arm O: Infraspinous fossa of scapula I. Greater tubercle of humerus Subscapularis Medial rotation of arm O: Subscapular fossa of scapula I: Lesser tubercle of humerus Teres Minor Lateral rotation of arm O: Lateral border of scapula I: Greater tubercle of humerus (NOTE: SUPRASPINATUS, INFRASPINATUS, SUBSCAPULARIS, AND TERES MINOR ARE THE FOUR MUSCLES THAT MAKE UP THE ROTATOR CUFF.) Teres Major Extend, adduct, and medially rotate arm O: Inferior angle of scapula I: Distal to lesser tubercle of humerus
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This note was uploaded on 12/21/2010 for the course ANTHRO 1 taught by Professor Slovakvillano during the Spring '10 term at Santa Rosa.

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Muscles_Briana_Fay - KEY: Italics indicate a muscle action...

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