Description

This video is about the Thoracolumbar Fascia (Fascia Thoracolumbalis), its structure, and the muscles associated with its different layers.

Thoracolumbar Fascia (Fascia Thoracolumbalis)

Posterior Layer (Lamina Posterior)

• Associated with Deep Back Muscles

Middle Layer (Lamina Media)

• Quadratus Lumborum
• Transverse Abdominal
• Internal Oblique
• External Oblique

Anterior Layer (Lamina Anterior)

• Psoas Major

Transcript

Introduction
0:03
What’s up. Meditay here and in this video, we’ll be going through the thoracolumbar fascia.
0:08
The thoracolumbar fascia is a large roughly diamond shapes area of connective tissue in
Thoracolumbar Fascia
0:13
the lumbar region, as you see here. The good thing with this fascia is that it organizes
0:18
muscles in the lumbar region into groups and it also functions as a main attachment
0:23
point to large muscles like the trapezius, Latissimus Dorsi and the Gluteus Maximus.
0:28
And to go through this fascia, we need to look at a cross section of the back. So here’s a
Parts of the Thoracolumbar Fascia
0:33
superior view of one of the Lumbar vertebra. The thoracolumbar fascia is organized into
0:39
three layers. It has a Posterior Layer, which is the most superficial. It has a middle layer,
0:44
as you see here. And it has an anterior layer. Aight. So, the Posterior Layer, cover all
0:50
the deep back muscles, You know all the muscles of the transversospinal system,
0:54
of the spinotransverse system and the spinospinal system, this one is going to cover them.
1:00
Between the middle layer and the anterior layer, there’s the quadratus lumborum,
1:04
which is the posterior muscle of the abdomen. Then, from the anterior layer and the middle
1:09
layer, you’ll find the lateral abdominal muscles attached to them,
1:12
like the transverse abdominal muscle, and the Internal oblique muscle. The external oblique
1:18
is indirectly attached to the thoracolumbar fascia, not directly, as you see here.
1:23
And then the anterior layer is going to cover the psoas major from the posterior surface.
1:28
So that was everything I had for the Thoracolumabr fascia, and I hope that was helpful.