You are presented with the question "What senses differences when you hurt your skin?" and the following answer choices: 
- touch receptors
 - sensory neurons
 - eyes
 - Veins and arteries.
 - matter vibrating
 - light receptors
 - smell
 - an organism's body

Now knowing that some touch receptors sense differences in temperature or pain and if the skin is painful, seek medical attention, choose the best answer.


 

 touch receptors        