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Anterior Muscles of Thorax& Abdomen

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devvies's version from 2017-03-08 18:29

Section 1

Question Answer
External Intercostal Actionelevates ribs
Internal Intercostals Actiondepress ribs in forceful expiration
Diaphragm Originxiphoid process, ribs 7-12 , lumbar vertabrae
Diaphragm InsertionCentral tendon
Diaphragm Actionrespiration
Rectus Abdominis Originpubic crest and symphysis
Rectus Abdominis Insertionxiphiod process & ribs 5-7
Rectus Abdominis Actionflexes vertebral column, compresses abdomen
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Section 2

Question Answer
External Oblique Originanterior surface of last 8 ribs
External Oblique Insertionlinea alba
External Oblique Actionaids in trunk rotation and lateral flexion, compresses abdomen
Internal Oblique Insertionlinea alba, ribs 9-12, pubic crest
Internal Oblique Actionaids in trunk rotation and lateral flexion, compresses abdomen
Transverse Abdominis Actioncompresses abdomen
memorize