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The lumbar spine consists of 5 moveable vertebrae numbered L1-L5. The complex anatomy of the lumbar spine is a remarkable combination of these strong vertebrae, multiple bony elements linked by joint capsules, and flexible ligaments/tendons, large muscle
The lower back comprises the lumbar spine, which is formed by vertebral bones, intervertebral discs, nerves, muscles, ligaments, and blood vessels. The spinal cord ends at the top of the lumbar spine, and the remaining nerve roots, called the cauda equina, descend down the remainder of the ...
Vaccaro, MD Philadelphia, Pennsylvania Wolfgang Raushning, MD Uppsala, Sweden Anatomy of the Lumbar Spine CHAPTER 5B Lumbar Vertebrae The vertebrae of the lumbar spine protect and sup- port the neural elements, including the nerve roots, collectively referred to as the cauda equina and ter- minal...
Lumbar Spine Anatomy The normal adult lumbar spine (low back) has 5 vertebral bodies (bones). There is some variation to this as some only have
Test your knowledge on the structures of the lumbar spine with our interactive quiz! Muscles affecting lumbar vertebrae function Longissimus muscle: a long muscle with a lumbar vertebral attachment at the transverse processes and accessory processes. It extends the spine upon bilateral contraction and...
Occipital, deep cervical, intercostal, subcostal and lumbar veins drain the skin and back muscles into the vertebral veins, azygos venous system and inferior vena cava. Nerves Posterior rami of spinal nerves supply innervation to the skin, spine and intrinsic muscles of the back. Supply to the ...
The lumbar spine typically has a slight inward curve known as lordosis. 腰椎正常情况下有轻度向前的弧度,称为前凸。 The lower back region contains large muscles that support the back and allow for movement in the trunk of the body. These muscles can spasm or become strained, which is a common...
Aspden RM. Review of the functional anatomy of the spinal ligaments and the lumbar erector spinae muscles. Clin Anat. 1992;5: 372-387.Aspden RM (1992) Review of the functional anatomy of the spinal liga- ments and the lumbar erector spinae muscles. Clin Anat 5(5):372- 387...
Top anatomy diagrams including images of human anatomy systems, human body, organs, bones and muscles