First Ray
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Top Contributors - Matthew Chin and Abbey Wright
Introduction[edit | edit source]
The first ray is the segment of the foot composed of the first metatarsal and first cuneiform bones.[1] The location of this joint is important as it intersects the transverse and medial longitudinal arches.[2] This segment serves as a critical element in the structural integrity of the foot.[1]
Anatomy[edit | edit source]
Biomechanics[edit | edit source]
The first ray serves numerous purposes, including: resisting ground reaction forces, maintaining medial longitudinal arch integrity during midstance supination, allowing first metatarsal head to plantarflex at heel lift, and providing medial stability for propulsive phase.[2]
