Lumb-

Lumb- (from Latin lumbus - lower back) is a component of complex words denoting a relationship to the lumbar spine or lower back.

This term is used in anatomical and medical terminology to refer to structures associated with the lumbar spine or lower back. For example:

1. Lumbarization is a developmental anomaly of the sacrum in which its first segment resembles a vertebra.

2. Lumbago is a painful condition of the muscles of the lumbar region.

3. Lumbar puncture is a puncture of the spinal canal in the lumbar region for therapeutic or diagnostic purposes.

4. The lumbar spine is a lumbar spine consisting of 5 vertebrae.

Thus, the prefix lumb- indicates a connection with the lumbar region and the lumbar spine.