Revision as of 17:14, 11 November 2020 by Travis(talk | contribs)(Created page with "<div class="WPC-editableContent"><table width="100%"><tr><td><div class="WPC-edit-area"><h3>Muscles of the Anterior Abdominal Wall</h3><ul><li>Muscle </li><li>Origin </li><li>...")
External oblique External surface of lower eight ribs Anterior half of iliac crest; anterior-superior iliac spine; pubic tubercle; linea alba Intercostal; subcostal n. Compresses abdomen; flexes trunk; active in forced expiration
Internal oblique Lateral two thirds of inguinal ligament; iliac crest; thoracolumbar fascia Lower four costal cartilages; linea alba; pubic crest; pectineal line Intercostal n.; subcostal; iliohypogastric and ilioinguinal nn. Compresses abdomen; flexes trunk; active in forced expiration
Transverse Lateral one third of inguinal ligament; iliac crest; thoracolumbar fascia; lower six costal cartilages Linea alba; pubic crest; pectineal line Intercostal ; subcostal iliohypogastric and ilioinguinal nn. Compresses abdomen; depresses ribs
Rectus abdominis Pubic crest and pubic symphysis Xiphoid process and costal cartilages Intercostal ; subcostal n. Depresses ribs; flexes trunk
Pyramidal Pubic body Linea alba Subcostal
Tenses linea alba Cremaster Middle of inguinal ligament; lower margin of internal oblique muscle Pubic tubercle and crest