Q: Which of the following equations best represents the relationship between the number of taste buds ($$N_{tb}$$), the number of foliate papillae ($$N_{fp}$$), and the average number of taste buds per papilla ($$n_{tb/fp}$$)?

$$N_{tb} = N_{fp} \times n_{tb/fp}$$

Question 1

Which structure is primarily responsible for detecting odorants in the nasal cavity?

Accepted Answer

Olfactory epithelium

Question 2

A patient presents with a loss of taste sensation on the posterior third of the tongue. Which cranial nerve is most likely affected?

Accepted Answer

Glossopharyngeal nerve (CN IX)

Question 3

Which of the following best describes the function of the cricoid cartilage in the larynx?

Accepted Answer

It forms a complete ring that provides structural support to the airway.

Question 4

Which of the following equations best represents the relationship between the number of taste buds ($$N_{tb}$$), the number of foliate papillae ($$N_{fp}$$), and the average number of taste buds per papilla ($$n_{tb/fp}$$)?

Accepted Answer

$$N_{tb} = N_{fp} 	imes n_{tb/fp}$$

Question 5

Damage to which structure would most directly impair the sense of smell?

Accepted Answer

Olfactory sensory neurons

Question 6

Which of the following best explains why a cold can reduce your sense of taste?

Accepted Answer

Mucus buildup in the nasal cavity blocks odorants from reaching the olfactory epithelium.

Question 7

A histological section shows numerous oval structures embedded in the epithelium of foliate papillae. What are these structures most likely to be?

Accepted Answer

Taste buds

Question 8

Which of the following is the correct sequence for the passage of air from the external environment to the larynx?

Accepted Answer

External nares → nasal cavity → internal nares → pharynx → larynx

Question 9

Which of the following best describes the role of supporting cells in the olfactory epithelium?

Accepted Answer

They provide metabolic and physical support to olfactory sensory neurons.

Question 10

A patient with damage to the soft palate may have difficulty with which of the following functions?

Accepted Answer

Separating the nasal cavity from the oral cavity during swallowing

Question 11

Which of the following statements about the lamina propria in the olfactory epithelium is correct?

Accepted Answer

It contains mucus-secreting glands that help dissolve odorants.

Question 12

If the thyroid cartilage is fractured, which function is most likely to be impaired?

Accepted Answer

Protection of the vocal cords

Question 13

Which of the following best describes the relationship between the olfactory cilia and odorant detection?

Accepted Answer

Olfactory cilia increase the surface area for odorant binding.

Question 14

A patient with a lesion in the cribriform plate may experience which of the following symptoms?

Accepted Answer

Loss of smell (anosmia)

Question 15

Which of the following best explains why the sense of taste is diminished when the nasal passages are blocked?

Accepted Answer

Odorants cannot reach the olfactory epithelium, reducing flavor perception.

Question 16

Which of the following is a correct statement about the location of taste buds?

Accepted Answer

Taste buds are located on the foliate, fungiform, and circumvallate papillae.

Question 17

Which of the following best describes the function of the epiglottis during swallowing?

Accepted Answer

It covers the laryngeal inlet to prevent food from entering the airway.

Question 18

If a person has a mutation that reduces the number of olfactory stem cells, what is the most likely consequence?

Accepted Answer

Reduced ability to regenerate olfactory sensory neurons

Question 19

Which of the following best explains the importance of mucus in the olfactory epithelium?

Accepted Answer

Mucus dissolves odorants, allowing them to bind to olfactory receptors.

Question 20

A patient with damage to the recurrent laryngeal nerve may experience which of the following symptoms?

Accepted Answer

Hoarseness or loss of voice due to impaired vocal cord movement

Special Senses: Olfaction and Taste – Structure and Function

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