3 minutes ago
Core Players i
Two foundational structures in the core are thick bands of connective tissue known as Aponeuroses: a variety of deep fascia that connect muscles and bones. Similar to tendons, these sheets of dense collagen not only connect body parts but they also create tension for larger structures. Similar to tendon tissue, they are low in blood and nerve supply.(1)
The first is Linea Alba, a dense band of connective tissue that runs from the xiphoid process (lowest end of the sternum) and the pubic symphysis (where the pelvic bones meet). It offers an attachment site to all of the layers of muscle that wrap around the front of the trunk and creates an anchor point for dynamic torso movement.(2)
Across the low back we find the Thoracolumbar fascia. Similar to the Linea Alba, this fascia runs from the deepest layers to the most superficial. It primarily connects to the lumbar vertebrae, the top of the pelvic bones, the bottom of the ribs, and virtually all of the posterior abdominal muscles. Three primary layers encase the Quadratus Lumborum and the paraspinal erectors. The most anterior layer is just posterior to Psoas Major, the deepest muscle of the core. The most superficial layer gives rise to latissimus dorsi, the most superficial posterior layer of the core.(3)
In the next couple of anatomic entries we will take closer look at the muscles of the core and how they interact. The images were generated by the Visible Body app by Argosy Publishing, and I strongly recommend it for any anatomy geek out there.
Until next time, be well my friends! (1) Aponeurosis, https://en.wikipedia.org/w/index.php?title=Aponeurosis&oldid=854377177 (last visited Nov. Nov. 15, 2018)
(2)Linea alba (abdomen), https://en.wikipedia.org/w/index.php?title=Linea_alba_(abdomen)&oldid=855348899 (last visited Nov. 15, 2018).
(3)Thoracolumbar fascia, https://en.wikipedia.org/w/index.php?title=Thoracolumbar_fascia&oldid=825195743 (last visited Nov. 15, 2018). at Salt Lake City, Utah