spinal column

Synonyms:

back, backbone, rachis, spine, vertebral column

Types:

notochord

a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates

chine

backbone of an animal

urochord

a notochord of a larval tunicate typically confined to the caudal region

Type of:

skeletal structure

any structure created by the skeleton of an organism