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The thoracolumbar fascia (lumbodorsal fascia or thoracodorsal fascia) is a complex, [1]: 1137 multilayer arrangement of fascial and aponeurotic layers forming a separation between the paraspinal muscles on one side, and the muscles of the posterior abdominal wall (quadratus lumborum, and psoas major [1]: 1137 ) on the other.
The lumbar fascia gives origin to the latissimus dorsi muscle (which arises from posterior layer of lumbar fascia), [1]: 40 abdominal internal oblique muscle (which arises along the entire length of the lumbar fascia), transversus abdominis muscle, [1]: 222 and gluteus maximus muscle. [1]: 125
Inguinal ligament, iliac crest and the lumbodorsal fascia: Insertion: Linea alba, pectineal line of pubis (via conjoint tendon) and ribs 10-12. Artery: Subcostal arteries: Nerve: Thoracoabdominal nn. (T7-T11), subcostal n. (T12), iliohypogastric n. (L1) and ilioinguinal n. (L1) Actions: Bilateral: Compresses abdomen Unilateral: Ipsilateral ...
It ends anteriorly in a broad aponeurosis (the Spigelian fascia), the lower fibers of which curve inferomedially (medially and downward), and are inserted, together with those of the internal oblique muscle, into the crest of the pubis and pectineal line, forming the inguinal conjoint tendon also called the aponeurotic falx. In layman's terms ...
Body composition: A major reason for the differences in VO2 max between men and women is attributed to body composition, or the ratio of lean muscle mass to body fat. But that said, if you were to ...
They are also known as the sacrospinalis group of muscles. These muscles lie on either side of the spinous processes of the vertebrae and extend throughout the lumbar, thoracic, and cervical regions. The erector spinae is covered in the lumbar and thoracic regions by the thoracolumbar fascia, and in the cervical region by the nuchal ligament.
Muscle contractions, which happen when you exercise, also secrete a lot of proteins and hormones which help regulate different body systems, Wanigatunga says. So, the more muscle contractions, the ...
A chiseled chest. Bulging biceps. Adonis-like abs. Gym rats push and pump weights to stay healthy and enjoy the side effect of looking buff in the process. But does achieving that muscular ...