Answer :
The Vestibulocochlear nerve( V||| cranial nerve) should be tested in a person who is having trouble balancing while walking.
What is Vestibulocochlear nerve?
The Vestibulocochlear nerve has two components within a single trunk: the vestibular nerve, which innervates the semicircular canals of the inner ear and is involved with equilibrium, coordination, and orientation in space, and the cochlear nerve, which innervates the cochlea and subserves hearing.
Dysfunction of the vestibular system results invertigo, the sensation of environmental motion. On examination, patients with vestibular nerve dysfunction typically have nystagmus, in which the fast component is directed away from the affected nerve. With their arms outstretched and eyes closed, their limbs tend to drift toward the injured side.
Functions of vestibulocochlear nerve:
- The primary function of the vestibulocochlear nerves (VIII) is a special sensory, but of two types.
- The vestibular nerve handles balance and equilibrium, while the cochlear nerve is responsible for hearing.
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