Anatomy

Saccule and Utricle

Two membranous sacs within the vestibular labyrinth of the INNER EAR. The saccule communicates with COCHLEAR DUCT through the ductus reuniens, and communicates with utricle through the utriculosaccular duct from which the ENDOLYMPHATIC DUCT arises. The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the VESTIBULAR NERVE.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Two membranous sacs within the vestibular labyrinth of the INNER EAR. The saccule communicates with COCHLEAR DUCT through the ductus reuniens, and communicates with utricle through the utriculosaccular duct from which the ENDOLYMPHATIC DUCT arises. The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the VESTIBULAR NERVE.

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Synonyms

8 entry terms
  • Otolithic Organs
  • Organ, Otolithic
  • Otolithic Organ
  • Utricle and Saccule
  • Saccule
  • Utricle
  • Saccules
  • Utricles

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.

MeSH Record

History Note

83; SACCULE & UTRICLE were see under LABYRINTH 1966-82

MeSH Record

Previous Indexing

  • Labyrinth (1966-1974)
  • Saccule (1975-1982)
  • Utricle (1975-1982)

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References

  1. National Library of Medicine. Saccule and Utricle. Medical Subject Headings (MeSH). 2026. Unique ID D012444. http://id.nlm.nih.gov/mesh/2026/D012444
  2. Saccule and Utricle. In: Wikidata. https://www.wikidata.org/wiki/Q29654295