This document provides an overview of applied physiology of the nervous system. It begins with an introduction to the central nervous system, including its organization and main parts like the brain and spinal cord. Key concepts covered include the structure and functions of neurons and neuroglia. The roles of gray and white matter are discussed. Main functions of the central nervous system include temperature regulation, spinal cord reflexes, memory and learning, and voluntary movement. Imaging techniques for the central nervous system are also mentioned. The document goes on to explain topics like resting membrane potential, action potentials, synaptic transmission, and the reflex arc.