For each of the structures concerned with taste sensation A–E, select the most appropriate option from the list below

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 fungiform 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 glossopharyngeal 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.