This is a study book for people learning osteology or anatomy. It features all the bones of the post-cranial skeleton, improving on some previous books with more detailed images of the bones of the feet. Each bone has their common features labelle...
The Radius is the second and shorter long bone of the lower arm. Its almost flat, rounded head articulates with the trochlea of the Humerus and the olecranon process of the Ulna has a notch which allows the Radius head to articulate and rotate against. This particular joint gives maximum flexibility to the lower arm, freeing the Radius to cross over the Ulna. The Radius has a large distal end that articulates with the Navicular and Lunate carpals, as well as with the distal end of the Ulna. The Dorsal Tubercles are also known as Lister's Tubercles.
Key Definitions: Sulcus - a groove or furrow
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Key Measurement: Maximum Length - length from the top of the head to the tip of the styloid process, measured with an osteometric board
Key Equation: Radiohumeral Index - may also be called the Humeroradial Index, it shows the relative length of the forearm to the upper arm
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