Question 1

Which type of sensory receptor is primarily responsible for detecting changes in blood chemistry, such as oxygen or carbon dioxide levels?

Accepted Answer

Chemoreceptors

Question 2

A patient presents with a loss of proprioception after a spinal cord injury. Which function is most likely to be impaired?

Accepted Answer

Ability to sense limb position and movement

Question 3

Which of the following best describes an exteroceptor?

Accepted Answer

A receptor that responds to stimuli arising outside the body

Question 4

Which receptor type is most likely to be activated when you touch a vibrating phone?

Accepted Answer

Mechanoreceptors

Question 5

A person steps on a sharp object and immediately feels pain. Which receptor is responsible for this sensation?

Accepted Answer

Nociceptors

Question 6

Which of the following is TRUE regarding thermoreceptors?

Accepted Answer

They respond to changes in temperature

Question 7

Which classification of sensory receptors is based on the complexity of their structure?

Accepted Answer

By receptor structure

Question 8

Which of the following is an example of a simple receptor for general sensation?

Accepted Answer

Modified dendritic ending of a sensory neuron

Question 9

A person is unable to detect the flavor of food due to damage in a specific receptor type. Which receptor is most likely affected?

Accepted Answer

Chemoreceptors

Question 10

Which of the following best describes the function of proprioceptors?

Accepted Answer

They inform the brain of one's movements by responding to stretch in skeletal muscles, tendons, joints, and ligaments.

Question 11

If a person cannot feel temperature changes on their skin, which receptor type is most likely malfunctioning?

Accepted Answer

Thermoreceptors

Question 12

Which of the following is NOT a classification by location for sensory receptors?

Accepted Answer

Photoreceptors

Question 13

A patient is unable to sense pressure changes in their skin. Which receptor type is most likely affected?

Accepted Answer

Mechanoreceptors

Question 14

Which of the following is a function of interoceptors (visceroceptors)?

Accepted Answer

Respond to chemical changes, tissue stretch, and temperature changes in internal viscera and blood vessels

Question 15

Which receptor type is responsible for detecting light energy, such as that which enters the eye?

Accepted Answer

Photoreceptors

Question 16

A person is exposed to extreme cold and experiences pain. Which two receptor types are involved in this response?

Accepted Answer

Thermoreceptors and nociceptors

Question 17

Which of the following is TRUE about special sense receptors?

Accepted Answer

They are responsible for vision, hearing, equilibrium, smell, and taste

Question 18

A multi-step scenario: A person is running and suddenly twists their ankle, feeling both pain and a loss of awareness of joint position. Which two receptor types are most directly involved in these sensations?

Accepted Answer

Nociceptors and proprioceptors

Question 19

Which of the following equations best represents the relationship between stimulus intensity ($$I) $$and receptor potential ($$V) in a $$sensory neuron, assuming a linear response?

Accepted Answer

$$V = kI$$

Question 20

Which of the following best explains why nociceptors are activated by both extreme heat and extreme cold?

Accepted Answer

Nociceptors are sensitive to pain-causing stimuli, including extreme temperatures.

Sensory Receptors: Classification and Function in the Nervous System

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