M7: Receptors

Question 1

What type of sensory receptor sends signals that cause the perception of pain in response to a potentially damaging stimulus?

Answer 1

nociceptors

Question 2

What type of sensory receptor transduces a chemical signal into an action potential, or more generally, detects certain chemical stimuli in the environment?

Answer 2

chemoreceptors (aka chemosensors)

Question 3

A ____________ is a sensory receptor, or receptive portion of a sensory neuron, that codes absolute and relative changes in temperature.

Answer 3

thermoreceptor

Question 4

What type of receptor is found in the vertebral arteries and monitors respiration rates by monitoring pH, oxygen levels, and carbon dioxide levels?

Answer 4

chemoreceptors (aka chemosensors)

Question 5

____________ are receptors that are sensitive to stimuli that distort their plasma membranes.

(fill in-the-blank)

Answer 5

mechanoreceptors

Question 6

What class/type of receptor monitors positions of joints and muscles?

Answer 6

proprioceptors

Question 7

Muscle spindles and Golgi tendon organs (GTO) are examples of what type of receptor?

Answer 7

proprioceptors

Question 8

What type of mechanoreceptor detects pressure changes in the walls of the blood vessels and in portions of digestive, reproductive and urinary tract?

Answer 8

baroreceptors

Question 9

What type of mechanoreceptor is sensitive to touch, pressure, and vibration?

Answer 9

tactile receptors

Question 10

Which of the following are Golgi tendon organs (GTO) sensitive to?

a) tension
b) stretch or lengthening
d) temperature
c) touch and vibration

Answer 10

tension (in tendon)

Question 11

It’s a hot day outside and when you walk into an air-conditioned building you quickly feel cool. What type of sensory receptor is responsbile for detecting this temperature change?

Answer 11

thermoreceptors

Question 12

Which of the following are muscle spindles sensitive to?

a) tension
b) stretching (or lengthening)
d) temperature
c) touch and vibration

Answer 12

stretching or lengthening (of muscles)

Question 13

What type of sensory receptor does the following describe:

Especially found in superficial portions of the skin, in joint capsules, within the periostium, and around the walls of blood vessels.

May be sensitive to:

• Extreme temperature
• Mechanical Damage
• Dissolved chemicals such as the ones released during inflammatory processes

Answer 13

nociceptors