Which definition is accurate for "neurologic"?

The term "neurologic" pertains specifically to the nervous system, encompassing its structure, function, and disorders. This definition highlights the focus on the brain, spinal cord, and peripheral nerves, illustrating how they interact with the body to control a wide range of functions, from movement to sensation and cognition.

Understanding the nervous system is vital for recognizing conditions such as neurological disorders, which can significantly affect a person’s health and daily life. The other options mistakenly link "neurologic" with unrelated systems: the digestive process, muscles and joints, and the respiratory system, all of which have their own distinct terminologies and fields of study. Therefore, defining "neurologic" in relation to the nervous system is not only accurate but essential for comprehensive medical understanding.