#LABELING PARTS OF THE EAR PRACTICE SERIES#

They help us maintain our sense of balance. Semicircular canals - three loops of fluid-filled tubes that are attached to the cochlea in the inner ear. It collects sound and directs it into the outer ear canal Pinna - (also called the auricle) the visible part of the outer ear. Outer ear canal - the tube through which sound travels to the eardrum. Nerves - these carry electro-chemical signals from the inner ear (the cochlea) to the brain. Hammer - (also called the malleus) a tiny bone that passes vibrations from the eardrum to the anvil. When you 'pop' your ears as you change altitude (going up a mountain or in an airplane), you are equalizing the air pressure in your middle ear. On average, people can hear sounds in the frequencies between 20 to 20,000 Hertz.Īnvil - (also called the incus) a tiny bone that passes vibrations from the hammer to the stirrup.Ĭochlea - a spiral-shaped, fluid-filled inner ear structure it is lined with cilia (tiny hairs) that move when vibrated and cause a nerve impulse to form.Įardrum - (also called the tympanic membrane) a thin membrane that vibrates when sound waves reach it.Įustachian tube - a tube that connects the middle ear to the back of the nose it equalizes the pressure between the middle ear and the air outside. The vibration is transferred to the snail-shaped cochlea in the inner ear the cochlea is lined with sensitive hairs which trigger the generation of nerve signals that are sent to the brain.

#LABELING PARTS OF THE EAR PRACTICE SERIES#

The sound makes the eardrum vibrate, which in turn causes a series of three tiny bones (the hammer, the anvil, and the stirrup) in the middle ear to vibrate.

Sound is collected by the pinna (the visible part of the ear) and directed through the outer ear canal. Our subscribers' grade-level estimate for this page: Today's featured page: Label the Bacterium Cell Word Puzzle: Words Containing EAR, A Worksheet. is a user-supported site.Īs a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.

Labeling parts of the ear practice