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Monthly Quiz

Series Twelve, Quiz 1
July 2009

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LMS Quiz - Series Twelve, Quiz One

Take the Quiz and Submit your entry. You'll get a chance at an Apple Video iPOD or an American Express Gift Card.

Click the box next to the best answer.

The Ear
Part 1

1. The middle ear is a pea-sized, air-filled cavity separated from the outer ear by the _____.

Epithelium
Tympanic membrane
Incus
Aditus

2. The eustachian tube is an opening on the front wall of the middle ear that leads to the upper part of the _____.

Malleus
Pharynx
Antrum
Cochlea

3. The _____, a structure found in the middle ear cavity, is the branch of the facial nerve that carries taste sensation for the anterior two-thirds of the tongue and innervates the submandibular and sublingual salivary glands.

Antrum
Vestibule
Chorda tympani
Tragus

4. The three semicircular canals at the top of the inner ear contain tiny sensory cells called crista, which detect fluid movement within the canals and maintain balance.

True
False

5. The organ of Corti, which lies within the middle chamber of the cochlea, contains over 16,000 tiny hair cells hair that transmit sound waves from the ear through the auditory nerve to the brain as electric impulses.

True
False




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