Anatomy
ulna Audio
ul·na [ uhl-nuh ]
Subclass of:
Arm Bones
Definitions related to bone structure of ulna:
  • (ulna) The bone that contains the olecranon process, lies between the radiohumeral joint and the carpus, and is adjacent to the radius.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • (ulna) Long bone, each instance of which articulates with some humerusand radius.
    Foundational Model of Anatomy
    University of Washington, 2017
  • (ulna) One of the bones that comprise the forearm. The largest aspect articulates with the humerus at the elbow joint and the smallest portion of the ulna articulates with the carpal bones in the wrist.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • (ulna) The inner and longer bone of the FOREARM.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Ulna, inner of two bones of the forearm when viewed with the palm facing forward. (The other, shorter bone of the forearm is the radius.) The upper end of the ulna presents a large C-shaped notch--the semilunar, or trochlear, notch--which articulates with the trochlea of the humerus (upper arm bone)...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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