Which of the following receptors produce sensation of pain?
Correct answer: B. Nociceptors
- A. Mechanoreceptor
- B. Nociceptors
- C. Chemoreceptors
- D. Thermoreceptors
Explanation
Nociceptors are responsible for detecting pain sensations and transmitting them to the brain.This option is not correct. Mechanoreceptors are sensory receptors that respond to mechanical pressure or deformation. They are responsible for detecting sensations such as touch, pressure, and vibration, but not specifically pain.This option is also incorrect. Chemoreceptors are sensory receptors that respond to changes in chemical concentrations, such as those related to taste and smell. They are not specifically associated with the sensation of pain.Thermoreceptors are sensory receptors that respond to changes in temperature, such as those related to heat and cold. They are not specifically associated with the sensation of pain.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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About Receptors
Receptors are specialized cells or proteins that detect stimuli such as light, sound, pressure, temperature and chemicals, then initiate responses through sensory or hormonal pathways. Questions distinguish sensory receptors from effectors, compare receptor types, and examine stimulus conversion into nerve impulses, including the roles of rods, cones, chemoreceptors and mechanoreceptors.
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