Question 1

Which structure in the ear is primarily responsible for detecting rotational movements of the head, such as shaking your head 'no'?

Accepted Answer

Crista ampullaris in the lateral semicircular canal

Question 2

A patient presents with hearing loss after prolonged exposure to loud rock concerts. Which type of hearing loss is most likely, and what is the primary structure affected?

Accepted Answer

Sensorineural hearing loss; cochlear hair cells

Question 3

Which fluid fills the membranous labyrinth of the inner ear and is most similar to intracellular fluid?

Accepted Answer

Endolymph

Question 4

The Organ of Corti is located within which specific part of the cochlea?

Accepted Answer

Scala media (cochlear duct)

Question 5

Which equation correctly describes the frequency ($$f) of a $$sound wave, given the speed of sound ($$v) $$and wavelength ($$\lambda$$)?

Accepted Answer

$$f = v / \lambda$$

Question 6

A person has difficulty localizing sound direction after a stroke affecting the auditory cortex. Which cues are most likely impaired?

Accepted Answer

Relative intensity and timing of sound waves between the two ears

Question 7

Which of the following best explains why the round window bulges outward when the oval window is pressed inward by the stapes?

Accepted Answer

To act as a pressure valve and dissipate sound energy within the cochlea

Question 8

Which part of the ear is responsible for maintaining static equilibrium, and what is the main stimulus it detects?

Accepted Answer

Maculae in the saccule and utricle; pull of gravity and linear acceleration

Question 9

A patient with otosclerosis has fused ossicles. What is the most likely consequence for hearing?

Accepted Answer

Conductive hearing loss due to impaired vibration transmission

Question 10

Which equation best represents the relationship between sound intensity ($$I) $$and amplitude ($$A) of a $$sound wave?

Accepted Answer

$$I \propto A^2$

Question 11

Which cranial nerve carries impulses from both the hearing and equilibrium receptors to the brain?

Accepted Answer

Vestibulocochlear nerve (VIII)

Question 12

If a person loses function in the vestibular apparatus, which of the following is most likely to occur?

Accepted Answer

Gradual adaptation by the nervous system to maintain position sense

Question 13

Which structure is responsible for transmitting sound vibrations from the tympanic membrane to the oval window?

Accepted Answer

Auditory ossicles (malleus, incus, stapes)

Question 14

Which type of hearing loss is most likely in a child born with Rh incompatibility and exposed to rubella during pregnancy?

Accepted Answer

Congenital hearing loss

Question 15

Which of the following best describes the function of the basilar membrane in the cochlea?

Accepted Answer

It vibrates in response to sound waves, causing hair cells to generate action potentials

Question 16

Which of the following is true regarding the detection of pitch in the cochlea?

Accepted Answer

Hair cells near the cochlear apex detect low-frequency sounds

Question 17

A patient with a ruptured eardrum and impacted ear wax is most likely to experience which type of hearing loss?

Accepted Answer

Conductive hearing loss

Question 18

Which of the following best explains why older adults often lose the ability to hear high-pitched sounds first?

Accepted Answer

High-frequency hair cells near the oval window are more susceptible to age-related damage

Question 19

Which equation best describes the propagation of action potentials ($$AP) $$along the auditory pathway, given a change in receptor potential ($$RP) $$and a threshold ($$T$$)?

Accepted Answer

$$AP = RP \geq T$$

Question 20

Which of the following is NOT a function of the vestibular apparatus?

Accepted Answer

Transmitting sound vibrations to the cochlea for hearing

The Sense of Hearing and Equilibrium: Anatomy & Physiology Study Notes

Study Guide - Practice Questions

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