Do horses have backbone. it is a?

Yes, horses have a backbone. It is a vertebral column.

The vertebral column is a flexible structure that runs from the skull to the tail. It is made up of a series of bones called vertebrae. The vertebrae are connected to each other by ligaments and muscles. The vertebral column provides support for the body and protects the spinal cord.

The spinal cord is a bundle of nerves that runs through the vertebral column. It connects the brain to the rest of the body. The spinal cord is responsible for transmitting messages between the brain and the body.

The vertebral column is an important part of the horse's body. It provides support, protection, and flexibility.