248875 thorax

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248875 thorax

  1. 1. www.Examville.com Online practice tests, live classes, tutoring, study guides Q&A, premium content and more .
  2. 2. THORAX
  3. 3. Thoracic superficial Thoracic - superficial Pectoralis major sternum and clavicle/greater tubercle of humerus adducts arm 
  4. 4. Back muscles <ul><li>Trapeziusoccipital + vertebrae/clavicle + scapulaupper div. elevates clavicle; for climbing, elevates scapula Levator scapulaecervical vertebrae/scapulaelevates scapulaRhomboideusthoracic vertebrae/scapulaadducts and fixates scapulaLatissimus dorsivertebrae/humerusdraws arm back Quadratus lumborumiliac crest/12th rib and lumbar vertebraedraws torso R and L inferiorly </li></ul>
  5. 5. - Thoracic - deep Diaphragm ribs + lumbar vert./central tendon inhalation, increases volume of the thoracic cavity External intercostals adjacent ribs elevates rib cage in inhalation Internal intercostals adjacent ribs depresses rib cage Pectoralis minor ribs #3-5 /coracoid of scapula moves scapula anteriorly, elevates rib cage
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