A slot car (sometimes, slotcar) is a powered miniature auto or other vehicle that is guided by a groove or slot in the track on which it runs.
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Flexion is a forward movement Extension is a backwardmovementBoth are extensive in the cervical and lumbar regions but restricted in the thoracic region. Lateral flexion is the bending of the body to one or the other side. It is extensive in the cervical and lumbar regions but restricted in the thoracic region. Rotation is a twisting of the vertebral column. This is least extensive in the lumbar region.