Fact 1: Some touch receptors sense differences in temperature or pain.

Fact 2: Students locate different types of nerve receptors in their skin.

Given the two facts above, answer the question "what in the skin sense temperature and pain?" with the following options: 
- clear receptors
 - dead receptors
 - matter vibrating
 - Veins and arteries.
 - athletes
 - Electrical energy
 - nerve receptors
 - sight receptors


 

       nerve receptors  