Which of the following statements is true?

Question

Quizplus · Accepted Answer

Sensory receptors are specialized cells that detect different forms of physical energy, such as light, sound, temperature, and pressure, and transduce them into nerve impulses that can be processed by the brain. Different modalities of sensations, such as vision, hearing, touch, taste, and smell, rely on different types of sensory receptors and their associated nerve fibers. The brain can distinguish between impulses of cold and heat, based on the differential activation of temperature-sensitive receptors. Option A is incorrect because our senses can only detect a limited range of energies, depending on the sensitivity and specificity of the sensory receptors. Option B is partially correct, but all types of nerve impulses are fundamentally the same, involving changes in membrane potential and neurotransmitter release. Option D is incorrect because the brain has specialized areas, such as the somatosensory and thermoregulatory cortex, that can discriminate between different qualities and intensities of temperature sensations.

Which of the Following Statements Is True