Question

Which of the following nerves arises from the organ of Corti?
A. Olfactory nerve
B. Cochlear nerve
C. Abducens nerve
D. None of these

Answer 1

It is also known as acoustic nerve. It is an integral part of the auditory system which enables effective hearing.

Step by step answer: The cochlear nerve (also termed as auditory or acoustic nerve) is one of the two parts of a cranial nerve, the vestibulocochlear nerve. The other part of the vestibulocochlear nerve is the vestibular nerve.
The cochlear nerve enables effective hearing, while the vestibular part of the cranial nerve maintains balance equilibrium and orientation in three-dimensional space.
The auditory receptors of the cochlear division are located in the organ of the Corti. These receptors follow the spiral shape of the cochlea and have about 2.5 turns.
The organ of Corti is composed of outer hair cells, inner hair cells, inner pillar cells, outer pillar cells, phalangeal cells, cells of Hensen, and cells of Claudius.
On average, there are about 30,000 nerve fibers within the cochlear nerve in humans.
The cochlear nerve transfers auditory sensory information from the cochlea of the inner ear directly to the brain.

Thus, the answer to this question is option (B) Cochlear nerve.

Additional Information: The vestibular nerve is one of the two parts of the vestibulocochlear nerve, which is associated with spatial orientation information. It carries information for maintaining balance, equilibrium, and orientation from the semicircular canals, also known as semicircular ducts, to the brain.

Note: An auditory nerve fiber can be either bipolar or unipolar having distal projection called peripheral processes as well as a central projection termed as Axon.
These projections are respectively called the peripheral axon and the central axon.