The thoracic spinal nerve 7 (T7) is a

spinal nerve A spinal nerve is a mixed nerve, which carries Motor neuron, motor, Sensory neuron, sensory, and Autonomic nervous system, autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each s ...

of the thoracic segment.American Medical Association
Nervous System -- Groups of Nerves It originates from the

spinal column The spinal column, also known as the vertebral column, spine or backbone, is the core part of the axial skeleton in vertebrates. The vertebral column is the defining and eponymous characteristic of the vertebrate. The spinal column is a segmen ...

from below the thoracic vertebra 7 (T7).

References

Spinal nerves {{neuroanatomy-stub