Fact 1: Nerves can be used to feel heat and pressure on the skin.

Fact 2: Sensory neurons run anteriorly from the nerve ring to the sensory organs in the head.

Given the two facts above, answer the question "what can be used to feel heat and pressure on the skin?" with the following options: 
- stem cells
 - joules
 - hormones
 - electricity
 - chemical messengers
 - Electrical energy
 - oxygen
 - sensory neurons


 

        sensory neurons 