capitulum

anatomy

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Last updated

June 23, 2026

Quick Summary

The term "capitulum" has two primary meanings. In anatomy, it refers to a rounded protuberance of a body part, such as a bone. For instance, the capitulum is part of the humerus bone, articulating with the radius at the elbow joint. The adjective "capituliform" means resembling a capitulum. The second meaning of capitulum relates to botany, describing a type of flower cluster where the axis is shortened and flattened to hold sessile flowers.123

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humerus
…two smooth articular surfaces (capitulum and trochlea), two depressions (fossae) that form part of the elbow joint, and two projections (epicondyles). The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna. The two depressions—the olecranon fossa, behind and above the trochlea, and the…
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…two smooth articular surfaces (capitulum and trochlea), two depressions (fossae) that form part of the elbow joint, and two projections (epicondyles). The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna. The two depressions—the olecranon fossa, behind and above the trochlea, and the…
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