dorsum

anatomy

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June 25, 2026

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The term "dorsum" in anatomy refers to the upper surface of a part or appendage, or more broadly, the back of an animal. It is derived from the Latin word for "back". The plural form of dorsum is "dorsa". This term is often used in conjunction with "dorsal," which also relates to the back or upper surface, such as the dorsal fin of a shark or dolphin.12

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tongue
The top surface, or dorsum, contains numerous projections of the mucous membrane called papillae. They contain taste buds, which are sensitive to chemical constituents of food, and serous glands that secrete some of the fluid in saliva, a substance that moistens the oral cavity and helps lubricate food particles.…
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The top surface, or dorsum, contains numerous projections of the mucous membrane called papillae. They contain taste buds, which are sensitive to chemical constituents of food, and serous glands that secrete some of the fluid in saliva, a substance that moistens the oral cavity and helps lubricate food particles.…
Read More