Lumbar fascia Lumbar fascia The lumbar fascia is an anatomic structure of the lumbar region. It consists of a band or sheet of connective tissue fibres, primarily collagen, that attaches, stabilizes, encloses and separates muscles not limited to the lumbar region as the name suggests, but extending upwards over the thorax to the neck and downwards over the muscles covering the sacrum. The upper thoracic portion is thin while the lumbar and sacral regions are thicker and stronger. The lumbar fascia binds the deep muscles of the back to the spine and to the transverse processes of the vertebrae. Additionally the lumbar
History of anatomy included Alessandro Achillini and Antonio Benivieni. Pathological anatomy Leonardo da Vinci (1452–1519) was trained in anatomy by Andrea del Verrocchio. In 1489 Leonardo began a series of anatomical drawings depicting the ideal human form. This work was carried out intermittently for over 2 decades. During this time he made use of his anatomical knowledge in his artwork, making many sketches of skeletal structures, muscles and organs of humans and other vertebrates that he dissected. Initially adopting an Aristotlean understanding of anatomy, he later studied Galen and adopted a more empirical approach, eventually abandoning Galen altogether and relying entirely on his