What is the use of auditory nerve?
The auditory nerve is a bundle of nerve fibers that carries hearing information between the cochlea the brain.
Where does the auditory nerve send information?
Auditory nervous system: The auditory nerve runs from the cochlea to a station in the brainstem (known as nucleus). From that station, neural impulses travel to the brain – specifically the temporal lobe where sound is attached meaning and we HEAR.
Where does the auditory nerve end?
cochlear nucleus complex
The auditory nerve terminates in the cochlear nucleus complex at the junction of the medulla and pons (Figure 2). The cochlear nucleus comprises two physically distinct divisions: the dorsal cochlear nucleus (DCN) and the ventral cochlear nucleus.
What is the auditory pathway for hearing?
The external ear/pinna funnels sound waves into a unidirectional wave, and is able to direct it into the auditory canal. This sound then reaches the tympanic membrane, and causes it to vibrate. The louder the sound the bigger the vibration, the lower pitch the sound the slower the vibration.
What is the role of auditory nerve in the hearing of sounds?
The Inner Ear These nerve endings transform the vibrations into electrical impulses that then travel along the eighth cranial nerve (auditory nerve) to the brain. The brain then interprets these signals, and this is how we hear. The inner ear also contains the vestibular organ that is responsible for balance.
What is auditory nerve in psychology?
the branch of the eighth cranial nerve (see vestibulocochlear nerve) concerned with the sense of hearing. It originates in the cochlea, from which nerve fibers pass through several layers of nuclei in the brainstem to terminate predominantly in the auditory cortex.
Where does auditory processing occur in the brain?
The auditory cortex is found in the temporal lobe. Most of it is hidden from view, buried deep within a fissure called the lateral sulcus. Some auditory cortex is visible on the external surface the brain, however, as it extends to a gyrus called the superior temporal gyrus.
What nerve is the auditory nerve?
CN VIII, acoustic or vestibulocochlear nerve The acoustic or cochlear nerve is a sensory nerve essential for hearing. Together with the cochlea and the central pathway from the nucleus in the pons to the temporal cortex, it is part of the auditory system.
Where does auditory nerve enter brainstem?
The longer central processes of the bipolar cochlear neurons unite and are twisted like the cords of a rope to form the cochlear nerve trunk. These primary auditory fibres exit the modiolus through the internal meatus, or passageway, and immediately enter the part of the brainstem called the medulla oblongata.
What does the auditory system do?
The auditory system processes how we hear and understand sounds within the environment. It is made up of both peripheral structures (e.g., outer, middle, and inner ear) and brain regions (cochlear nuclei, superior olivary nuclei, lateral lemniscus, inferior colliculus, medial geniculate nuclei, and auditory cortex).
Is auditory nerve a motor nerve?
The vestibulocochlear nerve (auditory vestibular nerve), known as the eighth cranial nerve, transmits sound and equilibrium (balance) information from the inner ear to the brain….