Answer:
The sequence that correctly describes the path sound travels through the ear is pinna → external auditory canal → tympanic membrane → ossicles → cochlea → organ of Corti → brain.
Explanation:
The ear is a set of structures that allows the conversion of sound vibrations into nerve impulses to be conducted to the brain. Hearing is the sense that is possible thanks to the ear.
In general terms, the ear is divided into three sections: external, middle and internal ear. The external ear is in charge of conducting sound vibrations, in the middle ear they are converted into mechanical vibrations, and the inner ear transforms these vibrations into nerve impulses.
- Pinna and external auditory canal form the external ear, receiving and conducting sound vibrations to the tympanic membrane.
- The ossicles, hammer, anvil and stirrup, located in the middle ear, are responsible for collecting the vibrations from the tympanic membrane and conducting them to the cochlea.
- The cochlea -in the inner ear- is in contact with the oval window, where the stirrup rests. It receives mechanical vibrations coming from the middle ear and leads them to the organ of Corti, located inside it. The organ of Corti has cilia capable of transforming vibrations into nervous impulses.
The organ of Corti is in relation to the auditory nerve, which leads the nervous impulses produced to the auditory cortex, in the brain.
