The spinal cord is the lower cylindrical part of the central nervous system inhabiting the upper two-thirds of the vertebral canal and is typically 45 cm long. It starts at the foramen magnum as the continuance of medulla oblongata and normally ends opposite the intervertebral disc between the L1 and L2 vertebrae. The spinal cord [...]
A spinal nerve is composed of many nerves, which carries motor, sensory, and autonomic signals between the spinalcord and the body. Human body consist of 31 pairs of spinal nerves, one on each side of the vertebral column. The 31 sets of spinal nerves are segmental in circulation and arise via the vertebral canal in between the [...]
A ventral root as well as a dorsal root combines to create a spinal nerve, which travels outside from the vertebral canal via an intravertebral foramen (bone opening). The ventral root (motor root) of every single spinal nerve includes axons from motor neurons whose cell bodies are located inside the gray matter of the spinal [...]
31 pairs of spinal nerves are found in the human body. All spinal nerves originate from a ventral root as well as a dorsal root. The combination of many dorsal as well as ventral root filaments or rootlets forms each root. All spinal nerve almost directly split up within a large ventral ramus as well [...]