â Christian name â forename â given name. 1. 'first name'. Your first name is the name that was given to you when you were born. Your first name comes in front of your surname. At some point in the conversation Brian began calling Philip by his first name. In British English, people sometimes use Christian name instead of first name.
The intervertebral fusion cage is a large, hollow cylinder made of some type of metal, usually titanium. It is designed as a cage so that bone graft can be placed inside the hollow cylinder to allow a spinal fusion to occur between two vertebrae.
It is predominantly composed of neuron cell bodies and unmyelinated axons. The gray color is produced by cytoplasmic elements seen in all cell bodies and processes not covered by whitish myelin. Nuclei in the gray substance of the spinal cord function as centers for all spinal reflexes.