1/17/19 Open your notes to page 18. I will be checking for a summary on this page(s) Also be ready to flip to pages 20 and 22. I will be checking for.

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 Your ears are sense organs that respond to the stimulus of sound.  The sound waves are picked up from the surrounding air, and they are turned into.
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1/17/19 Open your notes to page 18. I will be checking for a summary on this page(s) Also be ready to flip to pages 20 and 22. I will be checking for questions and summaries on this page as well Copy the following onto a new sheet of paper: Page 25 EQ: What is the structure and function of the ear?

The Ear: Hearing and Balance The three parts of the ear are the inner, outer, and middle ear The outer and middle ear are involved with hearing The inner ear functions in both hearing and equilibrium Receptors for hearing and balance: Respond to separate stimuli Are activated independently

Outer Ear External auditory canal Tympanic membrane (eardrum) Short, curved tube filled with gland Tympanic membrane (eardrum) Thin membrane that vibrates Transfers sound energy to the middle ear

Middle Ear (Tympanic Cavity) A small, air-filled, mucosa-lined cavity Pharyngotympanic tube – connects the middle ear to the nasopharynx Equalizes pressure

Middle ear: Ossicles The tympanic cavity contains three small bones (ossicles) the malleus (hammer), incus (anvil), and stapes (stirrup) Vibrate when sound hits them

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