vertebra
vertebra One of 33 bony segments that form the human spinal column. Each vertebra has its own name and/or number. For example, the second cervical vertebra is known as the axis, or C2, vertebra. See also vertebral column.
vertebra One of 33 bony segments that form the human spinal column. Each vertebra has its own name and/or number. For example, the second cervical vertebra is known as the axis, or C2, vertebra. See also vertebral column.