| 21. | The most active toxin, resiniferatoxin, binds to pain receptors in the same way as capsaicin but much more powerfully.
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| 22. | The doctors theorized that the density of pain receptors in the ear lobe might be lower than in the thumb.
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| 23. | Braun underwent surgery in October to desensitize the pain receptors near the nerves at the base of his right thumb.
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| 24. | A . You have three different kinds of nerve fibers running from your touch and pain receptors to your brain.
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| 25. | The astringent makes your tissues contract, which puts a mechanical force on the pain receptors and makes them go'ouch '.
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| 26. | Paintal discovered several sensory receptors including atrial B receptors, pulmonary J-receptors, ventricular pressure receptors, stomach stretch receptors, and muscle pain receptors.
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| 27. | Professor Bartoshuk remembered that a colleague, Mark Whitehead, had shown that pain receptors in the mouth were wrapped around taste buds.
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| 28. | Because the shallow cut does not bleed very much, the pain receptors are left open to the air, ensuring continued pain.
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| 29. | There are no pain receptors in the colon, and you can watch the event progress on a television monitor at no extra charge.
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| 30. | A pain receptor is essentially a doorway into the nerves that allow pain signals to pass up the spinal cord to the brain.
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