A scientific and psychological examination of a gunshot.

"This is how you feel a bullet. You have certain sensory receptors that detect pain, these are called nociceptors. When a nocicpetor receives a painful stimulus, it sends a signal through its neuron to the spinal cord, which sends the signal to your brain, which sends it to a number of different areas for processing. The location and intensity of the stimulus is deciphered by the primary and secondary somatosensory cortex, for example."