One of the mysteries of the English language finally explained.
nounPlural ulnae, Plural ulnas
1The thinner and longer of the two bones in the human forearm, on the side opposite to the thumb.Compare with radius (sense 2 of the noun)
- ‘In addition, some tendinous bands are attached to the coronoid process of the ulna.’
- ‘The ulna styloid process was readily identifiable in all children, and its identification was not limited by wrist contracture.’
- ‘His ulna bone - on the little finger side of the forearm - was re-attached with two screws and bone graft.’
- ‘Height, weight, ulna, forearm, tibia, and lower leg lengths were measured using a Harpenden stadiometer and calipers, and electronic scales.’
- ‘Moving on to the ulna, which is the medial bone of the forearm, the radial notch may be seen clearly, articulating with the head of the radius at the superior radio-ulnar joint.’
- ‘This muscle passes transversely across the lower forearm from ulna to radius.’
- ‘This rhomboid shaped muscle arises from the lateral epicondyle of the humerus and supinator crest of the ulna, winds laterally around the radius, and inserts on its palmer surface.’
- ‘An advantage of our technique is that all attachment points of both the ulna and medial epicondyle were analyzed, giving a global picture of the length changes possible.’
- ‘Extensor digiti medii arises from the ulna beneath the extensor indicis, with which it may be fused.’
- ‘Trace the ulna down the side of your forearm to where it ends, a boney prominence above the wrist.’
- ‘Tunnels are then placed in the ulna and medial epicondyle with a 3.2-mm drill bit.’
- ‘In anatomical terms, the arm is built around three bones; - the humerus in the upper arm, and the radius and the ulna in the forearm.’
- ‘Displacement of the ulna from the trochlea, with humeroradial joint dislocation, is usually achieved only in a patient who has received general anesthesia.’
- ‘It may also join the supinator, the tendon of pronator teres, or the ulna.’
- ‘Bacilli were numerous in the FNAs of the ulna, lymph node, and sputum, but much less so in the bronchoalveolar lavage and bronchial wash specimens.’
- ‘It may extend proximally to the ulna or medial epicondyle and have additional attachment sites.’
- ‘All three heads run into a common tendon that crosses the elbow joint and inserts on the olecranon process on the ulna bone in the Forearm.’
- ‘The authors reported on two patients who underwent hybrid procedures with suture anchor fixation in the medial epicondyle and bone tunnels in the ulna, and three patients with complete suture anchor fixation.’
- ‘In the current study, little difference was found between the precision of forearm or ulna measurements in predicting pulmonary function.’
- ‘In the anterior view, the trochlear notch of the ulna is not seen through the humerus.’
- 1.1 The bone in a quadruped's foreleg or a bird's wing that corresponds to the ulna in a human being.
- ‘Bones of the forelimb and shoulder girdle in Alamosaurus, except the ulna, differ substantially from those of Titanosaurus colberti.’
- ‘In the equid foreleg, radius and ulna are united, and the ulna is greatly reduced so that all weight is born on the radius.’
- ‘Most of the mastodon material was recovered from a small area, and one humerus and an ulna were articulated.’
- ‘All were made from the ulna - a wing bone - of the red-crowned crane.’
- ‘They had been crafted from the ulnae (wing bones) of the red-crowned crane (Grus japonensis Millen) and had between five and eight finger-holes.’
Late Middle English (denoting the humerus): from Latin; related to ell.
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