Lumbar Spine Anatomy and Function - Human Anatomy | Kenhub

In this video, we help you learn about the anatomy of the lumbar spine. We cover a definition of the lumbar spine, the location of the lumbar spine, and the function of the lumbar spine. Feeling confident? Test your knowledge with this quiz! https://khub.me/3eq8f

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The lumbar vertebrae are located at the bottom section of the vertebral column, inferior to the rib cage and superior to the pelvis and sacrum. Since these vertebrae are most largely responsible for bearing the weight of the upper body (and permitting movement), they are logically also the largest segments of the vertebral column. These vertebrae are characterized by the absence of the foramen transversarium within the transverse process, and by the absence of facets on the sides of the body.

Most commonly, there are five lumbar vertebrae found in adult humans, numbered L1 to L5 - but some individuals have only four, while others have six! The lumbar vertebrae are found inferior to the thoracic vertebrae.

In this video, we run through:

0:12 Location and definition of the lumbar vertebrae
0:49 Number of lumbar vertebrae
1:31 Structure of the lumbar vertebrae

Want to test your knowledge on the lumbar spine? Take this quiz: https://khub.me/3eq8f

Read more on the lumbar vertebrae in this article, where we also go into several clinical conditions that may affect the lumbar spine: https://khub.me/txepy

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to https://khub.me/qv1wr