The L5-S1 spinal motion segment, also called the lumbosacral joint, is the transition region between the lumbar spine and sacral spine in the lower back. In this region, the curvature of the spine changes from lumbar lordosis (forward curve) to sacral kyphosis (backward curve).

2018年1月21日 · The fifth lumbar spine vertebrae (L5) is part of the greater lumbar region. To the human eye, this is the curve just above the buttocks, which is also commonly referred to as...

Explore the anatomy, structure, and role of the L5 vertebra in the lumbar region with Innerbody's 3D model. The fifth lumbar vertebra (or the L5 vertebra) is the largest and most inferior of the lumbar vertebrae.

2022年2月17日 · Your lumbar spine is the lower back region of your spinal column or backbone. It consists of five bones (L1-L5). Other structures in or around your lumbar spine are your intervertebral disks, spinal cord and nerves, muscles, tendons and ligaments. Your lumbar spine supports the weight of your body and allows a wide range of body movements.

The L4 and L5 are the two lowest vertebrae of the lumbar spine. Together with the intervertebral disc, joints, nerves, and soft tissues, the L4-L5 spinal motion segment provides a variety of functions, including supporting the upper body and allowing trunk motion in …

2017年11月15日 · 腰椎L1~L5. 一、腰椎（lumbar vertebrae）： 1、人体的腰椎L1~L5共有5块； 2、每一块腰椎由前方的椎体和后方的附件组成。 3、腰椎的结构有椎体、椎弓根、椎板、棘突、横突及上关节突、下关节突，与胸椎不同，椎体及椎弓根较大；

2023年11月1日 · L5, the fifth lumbar vertebra, is a pivotal component of the lumbar spine. It sits above the sacral region and below the fourth lumbar vertebra, L4 . It is the lowest of the lumbar vertebra and is characterized by its large, robust body, designed to …

2023年6月29日 · The L5 vertebra is the fifth and last bone in the lumbar spine, located beneath the L4 vertebra. It's part of the complex network of bones, nerves, and muscles that allow for the flexibility and movement of the lower back and lower body.

2021年11月16日 · The fifth lumbar vertebra (L5) is the largest of the five lumbar vertebrae and is considered an atypical vertebra due to its shape. L5 is the largest, most inferior lumbar discovertebral unit in the vertebral column, and participates in forming the lumbar lordosis (from L1 to L5, ranging from 20° to 40°).

The fifth lumbar vertebra (L5; 5th lumbar vertebra) is characterized by a larger and broader vertebral body than other lumbar vertebrae, which tends to increase in breadth with age, often forming reinforcing columns of bone between the bases of the pedicles and osteophytes bordering the inferior endplate.