Which type of sensory receptor responds to information from outside the body?

• A. Exteroceptors
• B. Interoceptors
• C. Proprioceptors
• D. Vestibular receptors

Answer: (A)

Exteroceptors are the receptors that detect stimuli from outside the body. They include skin receptors for touch, temperature, and pain, as well as receptors in the eyes, ears, nose, and tongue that sense external environmental inputs like light, sound, chemicals, and odors. The other receptor types monitor internal states: interoceptors sense conditions inside the body (like hunger, thirst, or blood pressure); proprioceptors provide information about body position and movement; and vestibular receptors in the inner ear detect head movement and balance. Since the question asks about information from outside the body, exteroceptors are the best fit.