The lumbar spine area is the lower portion of the spinal column, located between the last thoracic vertebra (T12) and the first sacral vertebra (S1).
This region consists of five vertebrae, labeled L1 to L5, which are larger and stronger than the vertebrae in the cervical and thoracic regions. These vertebrae provide protection to the spinal cord in this area and allow for a wide range of motion, including bending and twisting. The lumbar spine bears the majority of the body's weight and is therefore susceptible to injury and degeneration. Its robust structure is crucial for dispersing axial forces experienced during movement and weight-bearing activities.
Here's a breakdown of the key features of the lumbar spine:
- Location: Lower back, between the rib cage and the pelvis.
- Vertebrae: Five vertebrae (L1-L5).
- Function: Supports the upper body, allows for movement, and protects the spinal cord.
- Characteristics: Larger vertebrae to bear weight, more mobility than the thoracic spine.
- Common Issues: Lower back pain, herniated discs, spinal stenosis.
In summary, the lumbar spine is a critical region of the spine responsible for support, movement, and protection of the spinal cord in the lower back.
