Q: If a sound wave has a wavelength of $$0.5\ \text{m}$$ and a frequency of $$680\ \text{Hz}$$, what is the speed of sound in air?

Speed $$= \text{wavelength} \times \text{frequency} = 0.5\ \text{m} \times 680\ \text{Hz} = 340\ \text{m/s}$$

Q: A patient is exposed to a sound of $$100\ \text{dB}$$ for several hours. Which of the following is most likely to occur?

Severe hearing loss due to prolonged exposure above $$90\ \text{dB}$$

Question 1

Which of the following best describes the process by which a struck tuning fork produces sound waves in air?

Accepted Answer

The tuning fork creates alternating areas of high and low air pressure by compressing and rarefying air molecules.

Question 2

If a sound wave has a wavelength of $$0.5\ 	ext{m}$$ and a frequency of $$680\ 	ext{Hz}$$, what is the speed of sound in air?

Accepted Answer

Speed $$= 	ext{wavelength} 	imes 	ext{frequency} = 0.5\ 	ext{m} 	imes 680\ 	ext{Hz} = 340\ 	ext{m/s}$$

Question 3

Which property of a sound wave determines its perceived pitch?

Accepted Answer

Frequency

Question 4

A patient is exposed to a sound of $$100\ 	ext{dB}$$ for several hours. Which of the following is most likely to occur?

Accepted Answer

Severe hearing loss due to prolonged exposure above $$90\ 	ext{dB}$$

Question 5

Which of the following best explains why foods taste bland when your nose is blocked?

Accepted Answer

Taste is 80% smell, so blocking the nose reduces olfactory input.

Question 6

Which of the following is NOT a primary taste sensation detected by taste buds?

Accepted Answer

Metallic

Question 7

What is the role of cAMP in olfactory transduction?

Accepted Answer

cAMP opens Na$$^+$$ and Ca$$^{2+}$$ channels, leading to depolarization and impulse transmission.

Question 8

Which structure in the ear is responsible for monitoring rotational acceleration?

Accepted Answer

Crista ampullaris

Question 9

A person tilts their head forward. What happens to the hair cells in the macula?

Accepted Answer

Hair cells bend toward the kinocilium, causing depolarization and increased action potentials.

Question 10

Which of the following best describes the pathway of sound waves through the ear?

Accepted Answer

Sound waves vibrate the tympanic membrane, auditory ossicles amplify vibrations, pressure waves move through cochlear fluid, and hair cells are stimulated.

Question 11

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

Accepted Answer

$$v = f 	imes \lambda$$

Question 12

Which of the following is a function of the vestibular apparatus?

Accepted Answer

Monitoring static and dynamic equilibrium

Question 13

Which of the following is true regarding the neural pathway for balance and orientation?

Accepted Answer

Input from vestibular, visual, and somatic receptors is processed in the cerebellum and vestibular nuclei.

Question 14

Which of the following best explains olfactory adaptation?

Accepted Answer

Ca$$^{2+}$$ influx decreases response to a sustained stimulus, making people unable to smell an odor after prolonged exposure.

Question 15

Which of the following is perceived as loudness in a sound wave?

Accepted Answer

Amplitude

Question 16

Which of the following is a real-life example of a bitter taste sensation?

Accepted Answer

Quinine in tonic water

Question 17

Which of the following statements about the cochlear nerve is correct?

Accepted Answer

It transmits impulses from cochlear hair cells to the cerebral cortex for interpretation.

Question 18

Which of the following is a plausible consequence of damage to the vestibular nuclei in the brain stem?

Accepted Answer

Impaired reflexive responses to imbalance, increasing risk of falls

Question 19

Which of the following best describes the effect of inertia on endolymph in semicircular ducts during head rotation?

Accepted Answer

Endolymph moves in the direction opposite to the body's rotation, bending hair cells and informing the brain of head movement.

Chapter 15: The Special Senses – Smell, Taste, Hearing, and Equilibrium

Study Guide - Practice Questions

Study Guide - Flashcards