![]() The peritoneum is a serous membrane lining the abdominopelvic cavity. ![]() Spermatic cord surrounding the ductus deferens and testicular vessels as these structures traverse the inguinal canal. In the male, each layer of the anterior abdominal wall contributes a concentric layer of the Superficial ring in the aponeurosis of the external oblique. The inguinal canal is a passage through the anterior abdominal wall extending from theĭeep ring in the transversalis fascia to the Rectus abdominis, are active during flexion and rotation of the trunk and compression of the abdominal contents (increasing intra-abdominal pressure). The muscles of the anterior abdominal wall, A thin layer of fibrous deep fascia, the transversalis fascia, is positioned between the transversus abdominis and the fatty extraperitoneal fascia (immediately superficial to the peritoneum). Rectus sheath that splits around and encases the rectus abdominis muscle. The deep fascia and aponeuroses of the exernal oblique, internal oblique and transversus abdominis muscles contribute to the The deep membranous layer (Scarpa's fascia) is distinct over the lower portion of the anterior abdominal wall and fuses with the fascia lata at the inguinal ligament. The superficial layer (Camper's fascia) of this fascia is typically laden with adipose tissue and is continuous with the superficial fascia of the thigh. The anterior abdominal wall is covered by a layer of superficial (subcutaneous) fascia. Posterior abdominal wall and its associated retroperitoneal structures. Peritoneal cavity and its associated viscera, and the Sacroiliac joint and are supported by the sacroiliac and sacrolumbar ligaments.Īnterior abdominal wall, inguinal canal and associated spermatic cord, the The sacrum and innominate bones articulate (gliding or plane) at the Innervated by the anterior and lateral cutaneous branches of the lower (T7-11) intercostal nerves, and subcostal, iliohypogastric and ilioinguinal nerves.īones associated with the abdomen are the sternum (xyphoid process), costal cartilages, lower ribs and thoracic vertebrae, lumbar vertebrae, sacrum and innominate. Primary surface landmarks of the abdomen are associated with the sternum (xyphoid), ribs (costal margin), innominate (iliac crest, anterior superior iliac spine, pubic tubercle and pubic symphysis) and inguinal ligament. ![]()
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