EVERYDAY SCIENCE

Detailed explanation-1: -A reflex from hearing a sudden loud noise will happen in the primary acoustic startle reflex pathway consisting of three main central synapses, or signals that travel through the brain. First, there is a synapse from the auditory nerve fibers in the ear to the cochlear root neurons (CRN).

Detailed explanation-2: -Auditory nervous system Your auditory nerve runs from your cochlea to a station in your brain stem (known as the nucleus). From that station, neural impulses travel to your temporal lobe-where your brain attaches sound to meaning.

Detailed explanation-3: -Afferent neurons carry information from sensory receptors found all over the body towards the central nervous system, whereas efferent neurons carry motor information away from the central nervous system to the muscles and glands of the body in order to initiate an action.

Detailed explanation-4: -Your sympathetic nervous system is a network of nerves that helps your body activate its “fight-or-flight” response. This system’s activity increases when you’re stressed, in danger or physically active.