Question

the stretch of a full urinary bladder is detected by exteroceptors photoreceptors interoceptors thermoreceptors

Explanation:

Interoceptors detect internal stimuli. The urinary bladder is an internal organ, so the stretch of a full urinary bladder is detected by interoceptors. Exteroceptors detect external stimuli like touch on the skin. Photoreceptors detect light. Thermoreceptors detect temperature.

Answer:

interoceptors