circumvallate papillae

swellings on the posterior portion (back) of the tongue, each surrounded by a trench. In humans, there are 7 to 11 circumvallate papillae, arranged in a chevron; each papilla contains about 250 taste buds, lining the trench and oriented horizontally. Receptors in circumvallate papillae are particularly sensitive to bitter chemicals.

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Psychology term of the day

May 10th 2024

anthropogenesis

n. the scientific study of the origins and development of humans. Also called anthropogeny. —anthropogenetic or anthropogenic adj.