Question 1

Which of the following best describes the function of mechanoreceptors?

Accepted Answer

Respond to pressure, stretch, vibration, acceleration, and sound

Question 2

A patient presents with pain in the left arm during a heart attack. This phenomenon is best explained by which concept?

Accepted Answer

Referred pain

Question 3

Which type of receptor is most likely to adapt quickly to a constant stimulus and stop producing electrical signals?

Accepted Answer

Phasic receptor

Question 4

What determines the intensity of a sensory stimulus?

Accepted Answer

The number of receptors activated and the frequency of action potentials

Question 5

Which equation best represents the relationship between stimulus duration and the number of action potentials generated?

Accepted Answer

$$N_{AP} \propto D_{stimulus}$$

Question 6

Which of the following is an example of a tonic receptor?

Accepted Answer

Mechanoreceptor that monitors blood pressure

Question 7

Which property allows the brain to determine the location of a stimulus?

Accepted Answer

Projection

Question 8

A receptor that responds to changes in blood pH is classified as which type?

Accepted Answer

Chemoreceptor

Question 9

Which of the following statements about nociceptors is TRUE?

Accepted Answer

They respond to strong chemical, temperature, and mechanical stimuli.

Question 10

Which of the following best describes the process of transduction in sensory receptors?

Accepted Answer

Conversion of a stimulus into an electrical event by opening or closing ion channels

Question 11

Which of the following is NOT a somatic sense?

Accepted Answer

Equilibrium

Question 12

Which type of receptor is responsible for detecting body position and movement?

Accepted Answer

Proprioceptor

Question 13

A patient exposed to a constant warm temperature between 20–40°C will experience:

Accepted Answer

Adaptation of temperature receptors

Question 14

Which of the following best explains why pain from internal organs is often perceived as coming from the skin?

Accepted Answer

Sensory neurons from different locations converge on a shared pathway to the brain

Question 15

Which of the following is TRUE regarding action potentials generated by sensory receptors?

Accepted Answer

Their frequency increases with stimulus intensity

Question 16

Which of the following is an example of a special sense?

Accepted Answer

Equilibrium

Question 17

Which of the following equations best describes the proportional relationship between stimulus intensity and action potential frequency?

Accepted Answer

$$f_{AP} \propto I_{stimulus}$$

Question 18

Which of the following is a property of phasic receptors?

Accepted Answer

They rapidly adapt to a constant stimulus and turn off.

Question 19

Which of the following is TRUE about receptor potentials?

Accepted Answer

They can be depolarizing or hyperpolarizing and may facilitate or inhibit action potentials.

Question 20

Which of the following is a correct example of a chemoreceptor?

Accepted Answer

Receptor that detects changes in blood oxygen or pH

Sensory Receptors: Structure, Function, and Classification

Study Guide - Practice Questions