Ulna facts for kids
The ulna is one of the two bones which make up the lower forearm in tetrapods. The other one is the radius. Above them is the elbow and humerus; below are the hands or front feet.
Images for kids
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Upper extremity of left ulna. Lateral aspect.
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Vertical section through the articulations at the wrist, showing the synovial cavities.
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Bones of left forearm. Anterior aspect.
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Bones of left forearm. Posterior aspect.
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Ligaments of wrist. Anterior view
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Ligaments of wrist. Posterior view.
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Position of ulna (red). Animation
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Bones of the right arm, showing the ulna, radius, wrist and humerus
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Cross-section through the middle of the forearm, showing the two bones and the muscles, nerves and blood vessels surrounding them.
See also
In Spanish: Cúbito para niños
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Ulna Facts for Kids. Kiddle Encyclopedia.