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What does the Rectus Abdominus do?
Flexes lumbar and lower thoracic portion of vertebral column
Origin: Synphysis pubis and pubic crest
Insertion: Cartliage of 5th and 7th ribs, xiphoid process of sternum
Flexes...
What does the Transverse abdominis do?
Compress the ribs and viscera, providing and pelvic stability
Origin: inner surface of cartilage of lower six ribs, lumbar fascia and the iliac crest
Insertion: inserts into the linea alba behind the rectus abdominus
Origin:
Inguinal ligamanet, lilac crest and the thorocolumbar fascia
Compresses...
Provides.....
What do the External obliques do?
Rotates vertebral column to opposite side.
Compresses, abdomen and stabilises and stabilises torso,
Flexes vertebral column to same side
Origin: Lower ribs
Insertion: Anterior part of the iliac crest, abdominal aponeurosis to linea alba
Roatates...
Compresses....
Flexes....
What do the internal obliques do
Compresses abdomen and stabilises torso,
Flexes vertebral column to same side,
Rotates vertebral column to same side
Origin: Inguinal ligament, lilac crest and the thoracolumbar fascia
Insertion: abdominal aponeurosis to linea alba, internal surface o flower three ribs
Insertion:
Stabilises...
Rotates...
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