Skeletal System
Proximal Articular Area of Fifth Metacarpal Bone
Area articularis proximalis ossis quinti metacarpi
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The proximal articular area of the fifth metacarpal bone consists of the superior and lateral aspects of the base of the bone that articulate with adjacent bones. It includes the proximal and fourth metacarpal articular facets.
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Metacarpal Bone
The trapezial angle is defined the complement of the angle formed by the intersection of the line parallel to the trapezial articulation and the line parallel to the long axis of the index metacarpal bone.
