Which hair extensions allow for natural movement, are a good choice for chemically damaged hair, can be reused, and are not overly time-consuming? 

The malleus:

The cochlea has three fluid filled ducts. This duct contains the organ of corti.

Select the term which means being arranged in the most optimal way by frequency. Hair cells of the cochlea are arranged in this manner, where the high frequencies are at the base and low frequencies are at the apex of the cochlea.

After leaving the relay point in #23, it will then go to the:

Identify the following landmarks: (You should place the numbers in the blanks below) exam2pic1(1).png   Malleus Stapes Auricle Cochlea EAM Incus TM Round Window Superior SCC Eustachian Tube Auditory Nerve

The same duct that contains the organ of corti is also filled with:

This device is an instrument with which we can measure hearing thresholds.

Both the outer and middle ear are:

What are the three functions of the Eustachian (auditory) tube?