Definition
Medulla spinalis is the Latin term for the spinal cord. It's a cylindrical bundle of nerve fibers that extends from the brainstem down the back, housed within the vertebral column. It serves as the main conduit for communication between the brain and the peripheral nervous system. Think of it as a superhighway for neural signals. It transmits sensory information (like touch and pain) to the brain and motor commands (like muscle movements) from the brain. Damage to the medulla spinalis can result in loss of sensation and motor control.