Question

summary on structure of human ear

Answer 1

 Structure and function of the outer and middle ear. ... The outer ear consists of the visible part of the ear or pinna, the external auditory canal (meatus), and the tympanic membrane (tympanum) or eardrum. The human pinna is formed primarily of cartilage and is attached to the head by muscles and ligaments.

Answer 2

Sound is transmitted through the air as sound waves from the environment. The sound waves are gathered by the outer ear and sent down the ear canal to the eardrum.

The sound waves cause the eardrum to vibrate, which sets the three tiny bones in the middle ear into motion.

The motion of the three bones causes the fluid in the inner ear, or cochlea, to move.

The movement of the fluid in the inner ear causes the hair cells in the cochlea to bend. The hair cells change the movement into electrical impulses.

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