Final Exam Aslp 3025( Practice Quizzes )

How are the ossicles held in place in the middle ear?

Ligaments

Which of the following structures is part of the outer ear?

Pinna

What structure maintains equilibrium between pressure of middle ear and atmospheric pressure?

Eustachian tube

The stereocilia of the crista ampullaris found in the ampulated ends of the semicircular canals are embedded in what structure?

Cupula

Which layer of the tympanic membrane contains fibrous tissue for vibration?

Intermediate

Which of the following statements is true about the ear canal?

It is comprised of 1/3 cartilage and 2/3 bone

Which sensory organ detects horizontal linear acceleration?

Macula in the utricle

Which of the following diarthrodial joints allows for movement between the malleus and the incus?

Malleoincudal joint

What provides the means for transmission of acoustic energy from the tympanic membrane to the inner ear?

Ossicles

An audiologist can detect that an ear drum is healthy by what sign?

Presence of a cone of light

. The contraction of what muscle in response to sounds louder than 85 dB is measured by the acoustic reflex?

Stapedius

Which muscle functions to pull the malleus anteromedially?

Tensor tympani

Which of the following allows for the middle ear to overcome the higher impedance of water than air?

The area difference between the tympanic membrane and footplate of the stapes

Which of the following statements is true regarding sound?

The ear responds to frequencies ranging from 20 to 20, 000 Hz

Which of the following statements about the labyrinth of the inner ear is true?

The membranous labyrinth is found within the bony labyrinth

Which of the following statements is true about the Organ of Corti?

The outer hair cells are embedded in the tectorial membrane

. What happens when the stereocilia bend towards the kinocilium?

The potassium and calcium channels open

Which of the following statements is true about the fluid filled chambers in the cochlea?

The scala media contains endolymph

What structure forms the boundary between the outer and middle ear?

Tympanic membrane

With linear movements, what causes the bending of the stereocilia?

movement of the otoliths which shifts the otolithic membrane