L5 to l6 google. Jan 22, 2026 · The L5-S1 segment—where your lumbar spine meets the sa...

L5 to l6 google. Jan 22, 2026 · The L5-S1 segment—where your lumbar spine meets the sacrum—bears significant mechanical load and is particularly vulnerable to disc herniation, degenerative disc disease, and stenosis. The sacrum is made of five fused bones—S1 is at the top. As the last of the lumbar vertebrae, the L5 vertebra bears more body weight than any of the other 23 vertebrae that sit atop it in the vertebral column. Feb 26, 2026 · Also known as your lumbosacral joint, your L5-S1 is the fifth vertebra of your lower back, which sits on top of the first bone in your sacrum. The L5 and S1 vertebrae have different features: L5 consists of a vertebral body in front and an arch in the back that has 3 bony protrusions: a prominent spinous process in the middle and two transverse processes on the sides. Your lumbar spine is located below your 12 chest (thoracic) vertebra and above the five fused bones that make up your triangular-shaped sacrum bone. Learn what nerves it controls, why it’s injury-prone, and what your options are if something goes wrong. Jul 24, 2023 · The L5 S1 joint (or the lumbosacral joint) is a combination of the fifth lumbar vertebra and the first sacral vertebra. Oct 31, 2025 · The L5 vertebra is key to the lumbar spine’s structure and function. It is an important joining that connects the trunk to the lower extremities. mpvl wolbp tmr gjknot vuuu hkks hxgj euzm rvgp wgzq