Anatomy
semicircular duct
sem·i·cir·cu·lar duct
Subclass of:
Semicircular canal; Vestibular System
Definitions related to semicircular duct:
  • Consists of three oval ducts arranged at right angles to one another; integral part of the equilibrium mechanism.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The membranous tube that is located within the osseous semicircular canal.
    NCI
    U.S. National Cancer Institute, 2021
  • The three membranous semicircular ducts within the bony semicircular canals. They open into the UTRICLE through five openings. Each duct has at one end a sensory area called the ampullary crest. AMPULLARY HAIR CELLS of the crests sense the movement of ENDOLYMPH resulting from rotation of the head.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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