Vertebrae are the bones that comprise the spine of animals with backbones.
Earthworms do not have bones, vertebrae and thus are invertebrates. in=not + vertebrate=bones/vertebrae
The vertebrae consist of the vertebral body, spinous process, transverse process, and articular processes. There are 33 vertebrae in total, including 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae (fused into the sacrum), and 4 coccygeal vertebrae (fused into the coccyx).
Irregular bones.
There are irregular bones, these bones are your vertebrae
The bones of the spine are called vertebrae. There are 33 total vertebrae in 5 regions: cervical (7), thoracic (12), lumbar (5), sacral (5), and coccygael (4). (The 5 bones of the sacral region are fused, as are the 4 bones of the coccygeal region.)
The cervical vertebrae are the spinal bones of the neck.
The human adult vertebral column consists of 26 bones. There are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, and 2 that are collections of fused bones, the sacrum and the coccyx. An infant may have 32, 33, or 34 spinal bones present at birth.
Vertebrae
The only bones (vertebrae) in your neck are from the spinal column. These are better known as the Cervical vertebra, of which you have seven, medically speaking they are labelled C1 - C7.
The 33 ring-shaped bones of the spine are called the vertebrae.
Back Bones
Vertebrae