Michael is playing football and collides with another player head to head. At first he feels a dull pain in the back of his head and then he starts to see black spots. Which receptors are activated/affected, respectively?
A) chemoreceptor, mechanoreceptor
B) mechanoreceptor, photoreceptor
C) nociceptor, photoreceptor
D) photoreceptor, thermoreceptor

Question

Quizplus · Accepted Answer

Nociceptors are pain receptors that would be activated by the dull pain in the back of his head due to the collision. Photoreceptors, located in the eyes, would be affected when he starts to see black spots, indicating a visual disturbance.

Michael Is Playing Football and Collides with Another Player Head