Cervical spine

 The cervical spine consists of seven vertebrae from C1 to C7.

 These vertebrae start at the bottom of the skull and spread down to the thoracic spine.

 The cervical vertebra close to the skull is C1 and is the smallest cervical vertebra.

 As it goes down to C7 get into bigger in size.

 Likewise all of the cervical vertebrae are smaller than the thoracic vertebrae.

 Cervical vertebrae C3 , C4, C5, C6 are known as typical vertebrae because have the same basic features with most of the vertebrae throughout the spine.

In between the two vertebrae there lies a soft pad like structure called inter vertebral disc which function as a shock absorber like when a person walk, run or jump.

The spinal cord is a long, thin, tubular bundle of nervous tissue about 18 inches long runs within the protective spinal canal from the base of the brain to the end of the spine.

The spinal cord serves as the transmission path way to rely messages between the brain and the rest of the body.