Biology, 24.10.2021 07:30 xcorojm

Mark’s dentist gives him a shot before performing a root canal. The dentist says the shot is anesthesia and that Mark won't feel any pain. Mark feels his gums going numb, while the rest of his body is working fine. What has the anesthesia actually done? The anesthesia has blocked sensory neurons from carrying signals to the brain .

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Mark’s dentist gives him a shot before performing a root canal. The dentist says the shot is anesthe...