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For each of the structures concerned with taste sensation A–E, select the most appropriate option from the list below. 1. Carries taste impulses serving the 2. Associated with bitter taste sensation. sensation of sweetness. 3. Carries taste impulses serving the sensation 4. Associated with sweet taste sensation. of bitterness. 5. Associated with salt taste sensation. A. Taste buds at the back of the tongue. B. Taste buds at the front of the tongue. C. Taste buds at the side of the tongue. D. The glossopharyngeal nerve. E. The facial nerve. |
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Answer» A. Option 2 Associated with bitter taste sensation. The taste buds sensing bitter tastes are located in the vallate papillae in a V-shaped area on the back part of the upper surface of the tongue. B. Option 4 Associated with sweet taste sensation. Taste buds that sense sweet stimuli are in the fungi form papillae on the dorsal surface towards the front of the tongue. C. Option 5 Associated with salt taste sensation. The taste buds at the side of the tongue respond to salt and sour taste stimuli. D. Option 3 Carries taste impulses serving the sensation of bitterness. The gloss opharyngeal nerve carries impulses from the posterior third of the surface of the tongue and thus serves bitter taste sensation. E. Option 1 Carries taste impulses serving the sensation of sweetness. The chorda tympani branch of the facial nerve carries sensory impulses from the anterior two-thirds of the tongue and thus serves the sensation of sweetness. |
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