anus (n.), anal (adj.)

https://doi.org/10.1351/goldbook.10415

External opening of the rectum to the body surface, controlled by the anal sphincter.

See also: imperforate anus
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 725 [Terms] [Paper]
Citation: 'anus' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.10415 RIS BibTex EndNote
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