Question

Which part of the ear determines the pitch of a sound?

Answer 1

The Cochlea determines the pitch of a sound.

Cochlea is concerned with hearing. It  looks like the shell of a snail as it spirals.

Organ of corti is located within the cochlea.

Hearing is dependent on sensory receptors in our ears, the cochlear nerve, and the auditory cortex.

REFERENCE:

1. Image: http://jan.ucc.nau.edu/~jde7/ese380/image.jet/cochlea.jpg