Lumbar spine
The lumbar spine (lumbar spine) is the lumbar part of the spine located at the level of the loin (Latin lumbo ) .
In humans, this section consists of 5 vertebrae called the lumbar vertebrae . In humans, the lumbar spine is highly stressed by walking upright , it represents the base of the trunk . These stresses often lead to painful irritation. The generic term “ low back pain ” may serve to summarize a wide range of clinical pictures, from the banal pain syndrome to intervertebral disc damage with neurological deficits. A weak support force in the lumbar region can lead to sitting kyphosis in babies . The shape and appearance of the lumbar spine are subject to great variability in humans. It is assumed that the upright posture has not yet been fully processed in developmental terms .
In most mammals the lumbar spine consists of 6 vertebrae, in dogs and cats it consists of 7. However, the number of vertebrae is subject to a certain variability, so that one vertebra can also occur more or less.
In birds , the lumbar vertebrae are fused with the sacrum and the pelvic bones ( synostosis ) and are therefore immobile. This fusion product is called synsacrum (→ bird skeleton ).
See also
- Thoracic spine
- Cervical spine
- Key indicator method for ensuring the protection of health for workers when handling loads manually
