Final answer:
The combining form for 'spinal cord' is 'myelo-'. The spinal cord functions as an information superhighway, relaying messages between the body and brain through a network of myelinated axons and neuron cell bodies, as well as the peripheral nervous system via spinal nerves.
Step-by-step explanation:
The combining form for meaning 'spinal cord' is 'myelo-', as in 'myelopathy', which refers to any pathology of the spinal cord.
The spinal cord is a long, thin, tubular bundle of nervous tissues that extend from the brainstem and continues down the center of the back to the pelvis. Encased in the vertebrae for protection, it functions as an essential information conduit, carrying messages to and from the brain, thereby controlling sensory and motor functions. A cross-section of the spinal cord reveals white matter composed of myelinated axons, and gray matter made up of neuron and glial cell bodies, as well as interneurons. Furthermore, the spinal nerves branching out from the spinal cord form a link between the central and peripheral nervous system, allowing for intricate communication within the body.