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ulna

ul·na / ˈəlnə/ • n. (pl. -nae / -ˌnē; -ˌnī/ or -nas ) the thinner and longer of the two bones in the human forearm, on the side opposite to the thumb. Compare with radius (sense 2). ∎  the corresponding bone in a quadruped's foreleg or a bird's wing. DERIVATIVES: ul·nar adj.

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ulna

ulna (ul-nă) n. the inner and longer bone of the forearm. It articulates with the humerus and radius above and with the radius and indirectly with the wrist bones below.
ulnar (ul-ner) adj.

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ulna

ulna The larger of the two bones in the forearm of vertebrates (compare radius). It articulates with the outer carpals at the wrist and with the humerus at the elbow.

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ulna

ulna Long bone of the inner side of the forearm. At its upper end it articulates with the humerus in the upper arm and with the radius in the forearm.

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ulna

ulna In tetrapods, the longer and thicker of the two bones of the fore limb; its upper end articulates with the humerus.

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ulna

ulna (anat.) larger inner bone of the forearm. XVI. — L. ulna forearm, ELL.
Hence ulnar XVIII.

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ulna

ulna In tetrapods (Tetrapoda), the post-axial bone of the fore limb.

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ulna

ulna: see arm.

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