The proper name is Mixed Spinal Nerve.
They do not have individual names, however. They are referred to by their number, with number one just above the first rib and the 31st going through the foramen between sacral 4 & 5.
There are 7 cervical vertebrae and 8 cervical spinal nerves. This explains why you have 31 spinal nerves relative to the 30 vertebral bones.
The nerves connected to the spinal cord are called spinal nerves.
Spinal
31
In the nerves of the peripheral nervous system; 12 cranial nerves and 31 spinal nerves.
There are 31 pairs of spinal nerves in the human body.
They are nerves in your spine.
Mixed Nerves PG 161 IN THE BODY STRUCTURES & FUNCTIONS TENTH EDITION
There are 31 pairs of nerves that leave the central nervous system - 12 pairs of cranial nerves that exit from the brain and 31 pairs of spinal nerves that exit from the spinal cord.
Peripheral nervous system
nerve plexusesThe spinal nerves emerge from the spinal cord at the brain stem, and between each vertebrae.
The body's nerves control body functions, such as vital organs, sensation, and movement. The nerves of the spinal cord are the means of communication from the brain to peripheral nerves.