Vertebrae vs. Vertebra

Any of the segments, composed of cartilage in cartilaginous fishes and of bone in other vertebrates, that form the spinal column.

Any of the segments, composed of cartilage in cartilaginous fishes and of bone in other vertebrates, that form the spinal column.

; the bones that make up the spinal column.

(skeleton) Any of the bony or cartilaginous segments which make up the backbone, consisting in some lower vertebrates of several distinct elements which never become united, and in higher vertebrates having a short more or less cylindrical body whose ends articulate by pads of elastic or cartilaginous tissue with those of adjacent vertebrae and a bony arch that encloses the spinal cord.

One of the serial segments of the spinal column.

One of the central ossicles in each joint of the arms of an ophiuran.

One of the bony segments of the spinal column