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  2. Lumbar nerves - Wikipedia

    en.wikipedia.org/wiki/Lumbar_nerves

    The fifth lumbar spinal nerve 5 (L5) [5] originates from the spinal column from below the lumbar vertebra 5 (L5). L5 supplies many muscles, either directly or through nerves originating from L5. They are not innervated with L5 as single origin, but partly by L5 and partly by other spinal nerves. The muscles are: gluteus maximus muscle mainly S1

  3. Quadratus lumborum muscle - Wikipedia

    en.wikipedia.org/wiki/Quadratus_lumborum_muscle

    The quadratus lumborum muscle originates by aponeurotic fibers into the iliolumbar ligament and the internal lip of the iliac crest for about 5 centimetres (2.0 in). It inserts from the lower border of the last rib for about half its length and by four small tendons from the apices of the transverse processes of the upper four lumbar vertebrae.

  4. Erector spinae muscles - Wikipedia

    en.wikipedia.org/wiki/Erector_spinae_muscles

    The erector spinae (/ ɪ ˈ r ɛ k t ər ˈ s p aɪ n i / irr-EK-tər SPY-nee) [1] or spinal erectors is a set of muscles that straighten and rotate the back.The spinal erectors work together with the glutes (gluteus maximus, gluteus medius and gluteus minimus) to maintain stable posture standing or sitting.

  5. Lumbar vertebrae - Wikipedia

    en.wikipedia.org/wiki/Lumbar_vertebrae

    In human anatomy, the five vertebrae are between the rib cage and the pelvis.They are the largest segments of the vertebral column and are characterized by the absence of the foramen transversarium within the transverse process (since it is only found in the cervical region) and by the absence of facets on the sides of the body (as found only in the thoracic region).

  6. What’s your core? And why does it matter? - AOL

    www.aol.com/news/core-why-does-matter-140042494.html

    And because your core wraps around the entire ... from your rib cage to your lumbar spine. Together, these muscles form a fundamental support system, enabling nearly every move you make and every ...

  7. Lordosis - Wikipedia

    en.wikipedia.org/wiki/Lordosis

    Because all muscles have a muscle that works in opposition to it. It is imperative that to keep all muscles protected, the opposite muscle is not stronger than the muscle at risk. In the situation of lumbar lordosis, abdominal muscles are weaker than the muscles in the lumbar spine and the hamstring muscles. The muscular imbalance results in ...

  8. Psoas major muscle - Wikipedia

    en.wikipedia.org/wiki/Psoas_major_muscle

    Tightness of the psoas can result in spasms or lower-back pain by compressing the lumbar discs. [9] A hypertonic and inflamed psoas can lead to irritation and entrapment of the ilioinguinal and the iliohypogastric nerves, resulting in a sensation of heat or water running down the front of the thigh. Psoas can be palpated with active flexion of ...

  9. Lumbar - Wikipedia

    en.wikipedia.org/wiki/Lumbar

    The lumbar region is sometimes referred to as the lower spine, or as an area of the back in its proximity.. In human anatomy the five lumbar vertebrae (vertebrae in the lumbar region of the back) are the largest and strongest in the movable part of the spinal column, and can be distinguished by the absence of a foramen in the transverse process, and by the absence of facets on the sides of the ...

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