Ceruminous glands which are found in the lateral half of the external auditory canal produce which of the following?
A. ear wax
B. secretions keep the tympanic membrane moist
C. vibrations that transfer to the tympanic membrane
D. none of the above
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External ear consists of
A. Pinna, auditory canal and ear drum
B. Eustachian tube and oval window
C. Vestibule, semicircular canals and cochlea
D. Malleus, incus and stapes
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