L5 S1 Anatomy

The sacrum is made of five fused bones of which the s1 is the topmost. The fifth lumbar spine vertebrae l5 is part of the greater lumbar region.

Lumbar Spine Anatomy Images Stock Photos Vectors

In between vertebrae are spinal discs which cushion the joints of the spine and provide support.

L5 s1 anatomy. It is also called the lumbosacral joint. The l5 s1 motion segment has distinctive anatomy and receives a higher degree of mechanical stress and loads compared to the segments above. In fact l5 s1 is the exact spot where the lumbar spine ends and the sacral spine begins.

This is a forward curve that helps keep the discs and muscles in proper alignment. If the lower back andor leg symptoms worsen or do not improve despite these treatments or in case of certain medical emergencies such as tumors or cauda equina syndrome surgery may be recommended. The l5 is larger than its counterparts located in the thoracic and cervical regions.

The two lowest segments in the lumbar spine l5 s1 and l4 l5 carry the most weight and have the most movement making the area prone to injury. To the human eye this is the curve just above the buttocks which is also commonly referred to as the small of the back. L5 s1 is the joint that connects these bones.

The place where they meet is called the lumbosacral joint or l5 s1. L5 s1 treatment lumbar spine anatomy video conditions affecting the l5 s1 spinal motion segment are usually treated with nonsurgical methods. The lumbar spine rests upon the sacrum.

1 these characteristics may make l5 s1 susceptible to traumatic injuries degeneration disc herniation andor nerve pain.

Tibial Nerve L4 L5 S1 S2 S3