Question 1

Which of the following statements best describes the role of basal cells in taste buds?

Accepted Answer

Basal cells coil around taste cells and serve as the initial gustatory pathway to the brain, shedding every week to ten days.

Question 2

A patient presents with a loss of taste sensation specifically at the back of the tongue. Which papillae are most likely affected?

Accepted Answer

Circumvallate papillae

Question 3

Which sequence correctly describes the taste pathway from chemical detection to perception in the brain?

Accepted Answer

Chemical dissolves in saliva → taste pore → gustatory hair → receptor potential in taste cell → action potential in sensory neuron → medullary nuclei → thalamus → gustatory cortex

Question 4

If the concentration of a chemical being tasted increases, what is the expected effect on taste perception?

Accepted Answer

Taste perception becomes more intense as concentration increases.

Question 5

Which cranial nerves are primarily responsible for carrying taste information from the tongue to the brain?

Accepted Answer

Facial and glossopharyngeal nerves

Question 6

A person with nasal congestion reports that food tastes bland. What is the physiological explanation for this phenomenon?

Accepted Answer

Olfactory receptors in the nasal cavity are blocked, reducing the contribution of smell to taste perception.

Question 7

Which taste sensation is most likely to be detected at the tip of the tongue?

Accepted Answer

Sweet

Question 8

If a substance activates both taste buds and pain receptors in the mouth, which type of food is most likely being consumed?

Accepted Answer

Hot chili peppers

Question 9

Which of the following best explains why most taste buds can respond to multiple taste qualities?

Accepted Answer

Taste buds are exposed to combinations of chemicals that activate different taste receptors.

Question 10

A researcher wants to model the relationship between the intensity of taste perception ($$I) $$and the concentration of a chemical ($$C) $$being tasted. Which equation best represents this relationship?

Accepted Answer

$$I = k 	imes C$$

Question 11

Which cell type forms the bulk of the taste bud and is responsible for supporting the structure?

Accepted Answer

Supporting cells

Question 12

During a neurological exam, stimulation of the medulla oblongata is found to disrupt taste perception. Which step in the taste pathway is most directly affected?

Accepted Answer

Synapse of sensory fibers with medullary nuclei at the base of the brain

Question 13

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

Accepted Answer

Spicy

Question 14

A person is unable to distinguish between sweet and salty foods but can still taste sour and bitter. Which region of the tongue is most likely impaired?

Accepted Answer

Tip and sides of the tongue

Question 15

Which of the following best describes the function of gustatory hairs?

Accepted Answer

They protrude from taste cells through a taste pore to detect dissolved chemicals.

Question 16

If a person has damage to the thalamus, which aspect of taste perception is most likely to be affected?

Accepted Answer

Relay and interpretation of taste signals in the gustatory cortex

Question 17

Which of the following best explains why foods with different textures (e.g., creamy vs. gritty) can influence taste perception?

Accepted Answer

Texture activates mechanoreceptors and thermoreceptors, which can enhance or detract from taste.

Question 18

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

Accepted Answer

Taste buds are located on the tongue, soft palate, inner surface of cheeks, pharynx, and epiglottis.

Question 19

Which papillae are the largest and least numerous, forming a 'V' at the back of the tongue?

Accepted Answer

Circumvallate papillae

The Sense of Taste: Structure, Function, and Integration with Smell

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