What is the other word for "Auditory Canal/Meatus"

Which of the following is the function of outer ear?

membrane that sends sound waves to hammer

It carries all signals for sound to brain

It allows for the passage of light into the eye and it also focuses the light

It is the hole where light enters into the eye

^{It controls the amount of light entering the eye}

A tough white skin (made of tissue) that covers all of the eyeball except the cornea.

supports eyeball and provides attachment for muscles

It converts light to electrical signals

It is the site of our consciousness

It regulates heartbeat, breathing, blood pressure, swallowing, etc.

Tube that sound travels down