11. Is is really possible to kill someone so quickly their pain receptors will not signal? 12. The implants are not unpleasant for the rats because the brain does not have pain receptors . 13. "This is what fish-- who have well-developed pain receptors -- experience when they are hooked for'sport . "' 14. In their battle, Midvalley reveals his ability to synchronize sound waves with pain receptors in the body. 15. Dilation of these extracranial blood vessels activates the pain receptors in the surrounding nerves, causing a headache. 16. The retina has no pain receptors . 17. They would not have felt pain in any case, because the brain has no pain receptors , Krubitzer said. 18. Hydroxy-a-sanshool stimulates pain receptors _ although not enough to cause discomfort _ and cells that respond to cold. 19. Pain receptors are known as nociceptors.20. There is no part of a healthy person's skin surface devoid of pain receptors ( " nociceptors " ).
