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  2. 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 ...

  3. Lumbar vertebrae - Wikipedia

    en.wikipedia.org/wiki/Lumbar_vertebrae

    The lumbar vertebrae are located between the thoracic vertebrae and pelvis. They form the lower part of the back in humans, and the tail end of the back in quadrupeds. In humans, there are five lumbar vertebrae. The term is used to describe the anatomy of humans and quadrupeds, such as horses, pigs, or cattle.

  4. Thecal sac - Wikipedia

    en.wikipedia.org/wiki/Thecal_sac

    The lumbar cistern is part of the subarachnoid space.It is the space within the thecal sac which extends from below the end of the spinal cord (the conus medularis), typically at the level of the first to second lumbar vertebrae down to tapering of the dura at the level of the second sacral vertebra.

  5. Vertebra - Wikipedia

    en.wikipedia.org/wiki/Vertebra

    In most cases this occurs in the lowest of the lumbar vertebrae (L5), but may also occur in the other lumbar vertebrae, as well as in the thoracic vertebrae. Spinal disc herniation , more commonly called a slipped disc , is the result of a tear in the outer ring ( anulus fibrosus ) of the intervertebral disc , which lets some of the soft gel ...

  6. Low back pain - Wikipedia

    en.wikipedia.org/wiki/Low_back_pain

    The lumbar (or lower back) region is the area between the lower ribs and gluteal fold which includes five lumbar vertebrae (L1–L5) and the sacrum. In between these vertebrae are fibrocartilaginous discs, which act as cushions, preventing the vertebrae from rubbing together while at the same time protecting the spinal cord.

  7. Spinal cord - Wikipedia

    en.wikipedia.org/wiki/Spinal_cord

    Sectional organization of spinal cord. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. [3] [4] Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous ...

  8. Human back - Wikipedia

    en.wikipedia.org/wiki/Human_back

    The human back, also called the dorsum (pl.: dorsa), is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck. [1] It is the surface of the body opposite from the chest and the abdomen.

  9. Lumbar arteries - Wikipedia

    en.wikipedia.org/wiki/Lumbar_arteries

    The lumbar arteries are arteries located in the lower back or lumbar region. The lumbar arteries are in parallel with the intercostals . They are usually four in number on either side, and arise from the back of the aorta , opposite the bodies of the upper four lumbar vertebrae .