Anatomy
anal sac
a·nal sac [ eyn-l sak ]
Subclass of:
Animal Structures
Definitions related to anal sacs:
  • (sac, anal) One of two pouches located on either side of the anus of most carnivores that contain the secretions of the anal sac glands.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • One of two pouches located on either side of the anus that contain the secretions of the anal glands.
    NCI
    U.S. National Cancer Institute, 2021
  • A pair of anal glands or sacs, located on either side of the ANUS, that produce and store a dark, foul-smelling fluid in carnivorous animals such as MEPHITIDAE and DOGS. The expelled fluid is used as a defensive repellent (in skunks) or a material to mark territory (in dogs).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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