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taste bud

a goblet-shaped structure, 30 × 50 μm, about 6,000 of which occur in the human mouth. Each bud is a collection of about 50 taste cells arranged like sections of an orange. At its apex is a taste pore through which each taste cell sends a microvillus studded with receptor proteins to sample the environment.

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Psychology term of the day

December 30th 2024

secretion

secretion

n.

1. the synthesis and discharge of specific substances from cells (which may be organized in glands) into other parts of the body. The substance produced may be released directly into the blood (an endocrine secretion) or through a duct (see exocrine gland).

2. the substance discharged by this process. —secretory adj.