Pain begins when an intense stimulus activates sensory fibers called _____ in the skin, muscles, or internal organs.

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Quizplus · Accepted Answer

Nociceptors are sensory fibers that specifically respond to intense or potentially harmful stimuli, such as heat, pressure, or chemicals. When nociceptors are activated, they send a signal to the brain indicating the presence of potential tissue damage, which is interpreted as pain. Pacinian corpuscles are a type of mechanoreceptor that respond to tactile pressure and vibrations, while proprioceptors are sensory receptors located in muscles and tendons that provide information about body position and movement. Pheromones are chemicals released by animals that serve as signals for behavioral or physiological responses.

Pain Begins When an Intense Stimulus Activates Sensory Fibers Called