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Full Torso

BIO 201 Mucle Handout

TermDefinition
Origin: Clavicle, Sternum, & Costal Cartilage of Upper Ribs Insertion: Intertubercular Groove of Humerus Action: Flexes, Adducts, & Rotates Arm Medially Pectoralis Major
Origin: Sternal End of Upper Ribs Insertion: Coracoid Process of Scapula Action: Pull Scapula Forward and Downward or Raises Ribs Pectoralis Minor
Origin: Outer Surface of Upper Ribs Insertion: Ventral Surface of Scapula Action: Protracts (Abducts) Scapula Serratus Anterior
Origin: Inferior Portion of Rib Insertion: Superior Rib Beneath Action: Elevates Ribcage External Intercostals
Origin: Spines of Sacral, Lumbar & Lower Thoracic Vertebrae, Iliac Crest and Lower Ribs Insertion: Intertubercular Groove of Humerus Action: Extends, Adducts, & Medially Rotates Arm or Pulls Shoulder Downward & Back Latissimus Dorsi
Origin: Crest of Pubis & Symphysis Pubis Insertion: Xiphoid Process of Sternum & Costal Cartilage Action: Tenses Abdominal Wall & Compresses Abdominal Content/ Flexes Torso Rectus Abdominis
Origin: Superior Portion of Rib Insertion: Inferior Rib Above Action: Depresses Ribcage Internal Intercostalis
Origin: Costal Cartilage, Lumbar Vertebrae, Ilium Insertion: Linea Alba Action: Tenses Abdomen Transversus Abdominus
Origin: Ribs, Sternum, Vertebra Insertion: Central Tendon of Diaphragm Action: Inhalation (Respiration) Diaphragm
Created by: rolyatstrebor