A&P1 Lab - Chest, abdomen, and back muscles (chart)
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9 Terms
Origin: ribs
Insertion: Central tendon sheet
Action: Expands thoracic cavity to produce inhalation
Innervation: Phrenic
Origin: Lower ribs
Insertion: Linea alba
Action: Compresses abdomen
Innervation: Intercostal
Origin: iliac crest
Insertion: Linea alba
Action: Compresses abdomen
Innervation: Intercostal
Origin: Clavicle
Insertion: Greater tubercle
Action: Flexes shoulder
Innervation: Pectorals
Origin: Ribs 3-5
Insertion: Coracoid process of scapula
Action: Depresses scapula
Innervation: Median pectoral
Origin: Pubis
Insertion: Xiphoid process
Action: Depresses ribs
Innervation: Intercostal
Origin: Ribs 1-9
Insertion: Vertebral border of scapula
Action: Protracts and rotates scapula
Innervation: Long thoracic
Origin: lower ribs
Insertion: Linea alba
Action: Compresses abdomen
Innervation: Intercostal
Origin: Occipital bone
Insertion: scapular spine
Action: Elevates and adducts scapula
Innervation: Cervical spinals
Note 
Flashcards (64)