Relacionar Columnas Principle muscle of trunkVersión en línea Match por Kristie Borgheiinck 1 Diaphragm 2 Perineum 3 Internal and External Intercostals 4 Sacrospinalis 5 External abdominal oblique 6 Levator ani elevate ribs and enlarge thoracic cavity attached to a fill the spaces between the ribs (lie at angles in opposite directions to each other) floor of pelvis, provides support (horizontal lie near genitalia) extends vertebral column to produce erect posture (long and thick below the trapezium and latissimus) dome forms the partition between the thoracic cavity and abdominal cavity below (moves down with inhalation) aids defecation, support the pelvic viscera (posterior from tip of the coccyx to the anal canal) Compresses abdominal cavity, expel substances from body, and flex spinal column.
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