Sound is "heard" when sound waves cause structures inside your ears to physically vibrate. a signal is then sent to your brain where it is interpreted as sound. what type of receptors in the ear are responsible for the sense of hearing?

The answer is mechanoreceptors.

Explanation:

As the name suggests (mechano = movement), mechanoreceptors respond to physical stimulation. The receptors in the ear work through hair follicles. They send a signal to the brain in the presence of movement or a change in position.

The ear's mechanoreceptors are the most sensitive in the human body.  

answer; acquired mainly during early childhood;