ANTEROLATER ABDOMINAL WALL AND GROIN

Part of the trunk lies b/w diaphragm and pelvis Lined with peritoneum a serous membrane

What are the layers that cover the abdomen?

What are the muscles of the anterolateral abdominal wall?

Nerves that innervate the anterolateral abdominal wall and groin are:

Axillary lymph nodes (above umbilicus) and superficial inguinal nodes (below umbilicus)

What does NAVEL stand for?

What is a common venous puncture site?

A defect in the abdominal wall resulting in a protrusion of abdominal contents. Groin is the most common.

Causes: chronic increased intra abdominal pressure, as a result of cough, constipation, prostate enlargement, or colon cancer

Origin: pubic symphysis and pubic crest Insertion: ribs 5,6,7-costal cartilages and xiphoid process Action: 1. Flexion of trunk 2. Compression and support of abdominal viscera Nerve: thoracoabdominal

O: Ribs-lower 8 (5-12) I: linea alba, pubis, anterior iliac crest A: Bilaterally: 1. flexion of trunk 2. compression & support of abdominal viscera Unilaterally: 1. lateral flexion of trunk 2. rotation of trunk to opposite side N: thoracoabdominal and subcostal

O: inguinal ligament, anterior iliac crest, thoracolumbar aponeurosis I: lower 4 ribs (9-12)-costal cartilages, abdominal aponeurosis, linea alba A: Bilaterally: 1. flexion of trunk 2. compression & support of abdominal viscera Unilaterally: 1. lateral flexion of trunk 2. rotation of trunk to same side N: thoracoabdominal

O: inguinal ligament, iliac crest, thoracolumbar aponerosis, ribs 7-12. internal surface of costal cartilages I: abdominal aponeurosis, linea alba, pubis A: compression & support of abdominal viscera N: thoracoabdominal Deepest of all abdominal muscles, runs crosswise