The lumbar fascia is the lumbar portion of the thoracolumbar fascia. It consists of three fascial layers - posterior, middle, and anterior - that enclose two (anterior and posterior) muscular compartments. The anterior and middle layers occur only in the lumbar region, whereas the posterior layer (as part of the thoracolumbar fascia) extends superiorly to the inferior part of the neck, and the inferiorly to the dorsal surface of the sacrum. The quadratus lumborum is contained in the anterior muscular compartment (between anterior and middle layers), and the erector spinae in the posterior compartment (between middle and posterior layers).[1]: 274 Psoas major lies anterior to the anterior layer. Various superficial muscles of the posterior thorax and abdomen arise from the posterior layer - namely the latissimus dorsi, and serratus posterior inferior.[citation needed]
^Sinnatamby C (2011). Last's Anatomy (12th ed.). Elsevier Australia. ISBN 978-0-7295-3752-0.
The lumbarfascia is the lumbar portion of the thoracolumbar fascia. It consists of three fascial layers - posterior, middle, and anterior - that enclose...
oblique muscle, and transverse abdominal muscle. In the lumbar region, it is known as lumbarfascia and here consists of 3 layers (posterior, middle, and...
curvature of the lumbar spine. However, the terms lordosis and lordotic are also used to refer to the normal inward curvature of the lumbar and cervical regions...
passes under the fascia lata before it breaches the fascia and supplies the skin of the anterior thigh. The obturator nerve leaves the lumbar plexus and descends...
superiorly by the 12th rib. The floor of the superior lumbar triangle is the transversalis fascia and its roof is the external abdominal oblique muscle...
the aponeurosis of the erector spinae (lumbodorsal fascia), the sacrotuberous ligament, and the fascia covering the gluteus medius (gluteal aponeurosis)...
anterior surface of the lumbarfascia (and thus also anterior to the underlying quadratus lumborum muscle which the lumbarfascia envelops) posterior to...
Latissimus dorsi Tensor fasciae latae Iliacus muscle Fascia lata Iliac fascia Transverse fascia The iliac crest has a large amount of red bone marrow...
thicker and broader in the lumbar region than in the thoracic region, and intimately blended with the neighboring fascia in both these regions. Inferior...
anatomist Alexis Littré (1658–1726). Lumbar hernia: a hernia in the lumbar region (not to be confused with a lumbar disc hernia), contains the following...
aponeuroses) is a flattened tendon by which muscle attaches to bone or fascia. Aponeuroses exhibit an ordered arrangement of collagen fibres, thus attaining...
and from the deep surface of the fascia lata. It is inserted between the two layers of the iliotibial tract of the fascia lata about the junction of the...
lumbar vertebrae plus the lower posterior border of the twelfth rib. Contraction of one of the pair of muscles causes lateral flexion of the lumbar spine...
the strongest flexor of the hip. The iliopsoas muscle is supplied by the lumbar spinal nerves L1–L3 (psoas) and parts of the femoral nerve (iliacus). The...
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...
peritoneum that passes through the transversalis fascia. Each testicle develops in the lower thoracic and upper lumbar region and migrates into the scrotum. During...
Plantar fasciitis or plantar heel pain is a disorder of the plantar fascia, which is the connective tissue that supports the arch of the foot. It results...
show the disposition of the lumbodorsal fascia. Muscles of the iliac and anterior femoral regions. The lumbar plexus and its branches. Psoas major muscle...
of lateral surface of shaft of humerus Latissimus dorsi Iliac crest, lumbarfascia, spines of lower six thoracic vertebrae, lower 3–4 ribs, inferior angle...
originates from the dorsal divisions of the second and third lumbar nerves from the lumbar plexus. It passes under the inguinal ligament to reach the thigh...
The genitofemoral nerve is a mixed branch of the lumbar plexus derived from anterior rami of L1-L2. It splits a genital branch and a femoral branch. It...
of the iliopsoas muscle and the quadratus lumborum muscle, filling the lumbar fossa posterior and inferior to the kidney. Bleeding from a blood vessel...
human body. The muscle is situated at the junction of the thoracic and lumbar regions. It has an irregularly quadrilateral form, broader than the serratus...
underlying transverse fascia. It originates from the inguinal ligament, costal cartilages 7-12, the iliac crest and thoracolumbar fascia. Inserts into the...
Transversus thoracis Pectoral fascia Clavipectoral fascia Thoracic fascia Endothoracic fascia Thoracic diaphragm Lumbar part Right crus of diaphragm Left...
transversus abdominis muscle, supplying them, and anastomosing with the lumbar arteries and inferior epigastric artery. The deep circumflex artery serves...
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