- May 6, 2026Longissimus thoracis is the largest muscle in the body by length, spanning from the pelvis to the upper thoracic vertebrae.…
- May 6, 2026The lateral fibres of quadratus lumborum connect the iliac crest to the twelfth rib, with a primary role in stabilising…
- May 6, 2026The lumbar multifidus is the single most important stabilising muscle of the lumbar spine. Its deep fibres provide intersegmental stability…
- May 6, 2026The lumbar rotatores are the deepest lumbar paraspinals with the highest muscle spindle density, functioning primarily as proprioceptive transducers rather…
- May 2, 2026The iliolumbar vein drains into the common iliac vein and receives tributaries from the iliacus, psoas, and lumbar muscles. Its…
- May 2, 2026The fifth lumbar artery arises from the posterior aorta at the L5 level or from the iliolumbar artery, supplying the…
- May 2, 2026The lumbar lymphatic trunks (right and left) collect lymph from the lower limbs, pelvic organs, and posterior abdominal wall, ascending…
- May 2, 2026The iliolumbar artery arises from the internal iliac artery and ascends behind the lumbosacral trunk to supply the iliacus, psoas…
- May 2, 2026The lateral sacral veins accompany the lateral sacral arteries on the anterior sacral surface, draining the sacral muscles, sacral canal…
- May 2, 2026The posterior internal vertebral venous plexus consists of two longitudinal channels running in the epidural space posterior to the dura,…