ENT

What is the characteristic of Class I - Clean Wounds?

• Involves the gastrointestinal tract

• Involves the genitourinary tract

• Does not involve the gastrointestinal, genitourinary, or respiratory tract

• Involves the respiratory tract

Under what conditions are Class II - Clean Contaminated wounds classified?

• Uncontrolled conditions

• Controlled conditions

• Accidental conditions

• Infected conditions

What is a characteristic of Class III - Contaminated wounds?

• Wounds older than 4 hours

• Open fresh accidental wounds under four hours old

• No spillage from GI tract

• Controlled entrance into the GI tract

What defines Class IV - Dirty/Infected wounds?

• Wounds less than 4 hours old

• No existing infection

• Abscesses and wounds older than 4 hours

• Controlled conditions

What is the function of the external auditory meatus?

• It connects the middle ear to the throat.

• It leads to the external auditory canal.

• It vibrates in response to sound waves.

• It transmits sound to the cochlea.

What substance is secreted by the glands in the lateral third of the external auditory canal?

• Mucus

• Sweat

• Cerumen

• Sebum

What is the function of the Tympanic Membrane (TM) in the middle ear?

• It amplifies sound waves.

• It takes sound waves and sends them to the ossicles.

• It converts sound waves into electrical signals.

• It filters out background noise.

Where does the middle ear extend from and to?

• From the outer ear to the inner ear.

• From the TM to the medial wall of the middle ear cleft.

• From the auditory canal to the eardrum.

• From the ossicles to the cochlea.

What is the function of the incus in the auditory ossicles?

• It connects the stapes to the malleus.

• It connects the malleus to the TM.

• It is embedded in the TM.

• It connects the stapes to the cochlea.

Which ossicle is partly embedded in the TM?

• Incus

• Stapes

• Malleus

• Cochlea