Which nerve branches from the semicircular canals, and runs through the cochlea, and transmits sound and equilibrium?

~Hello there! ^_^

Your question: Which nerve branches from the semicircular canals, and runs through the cochlea, and transmits sound and equilibrium?

Your  Vestibulocochlear nerve is the nerve branch that if from the semicircular canals, and run through the cochlea, and then transmits sounds and equilibrium.

Hope this helps~