anatomy chapter 8 part 2

What structure is lined with ceruminous glands?

external acoustic meatus (auditory canal)

The function of the pharyngotympanic (auditory) tube is to transmit sound vibrations to the eardrum (tympanic membrane).

false

The auditory ossicle called the "anvil" is also known as the ________.

incus

Which of the following is the auditory ossicle that attaches to the tympanic membrane?

malleus (hammer)

The vibration of sound waves cause the tympanic membrane, or eardrum, to move against an ossicle known as ________.

malleus or hammer

Identify the pathway of vibrations as they travel from the tympanic membrane to the ossicles ________.

malleus, incus, stapes (MIS)

An ear infection following an illness such as a cold can pass from the throat through the auditory (pharyngotympanic) tube to the ________.

middle ear

The "stirrup" is also referred to as the stapes.

true

The bony labyrinth of the internal ear consists of the cochlea, vestibule, and the semicircular canals.

true

Sound waves entering the external acoustic meatus (auditory canal) hit the eardrum, also known as the ________.

tympanic membrane

What membrane divides the outer ear from the middle ear?

tympanic membrane (ear drum)

Jake was struck in the head during a baseball game. Which of the following could impair the sense of hearing if damaged?

tympanic membrane (eardrum)