English: Explicative diagram of reflex arc; the journey takes energy and nerve impulse of a stimulus by two or more neurons. The spinal cord(3) receives sensory impulses of the body(2)- here his finger and sent to the central nervous system (afferent pathways(4), which sends impulses to the spinal motor (efferent(5)that sends turn-here the bodies arm muscle through spinal nerves(6). After receiving the order, the organ or the receiver of this command, run the command(7)- here remove the finger.

Parts of the scheme:

1. Heat Source
2. Finger (receiver)
3. Spinal cord
4. Axon Neuron Afar (sensory)
5. Axon Neuron Afar (motor)
6. Muscle (effector)
7. Impuls

Vector illustration done with the advice of Irene Pelegrí, biologist.