What is the first ray that I've been reading about in the hand?
The first ray refers to the area including and between the thumb and the first finger of your hand. This includes the bones, joints, ligaments, and muscles in the area.
Nathan A. Hall, MD, et al. Upper Extremity Injuries in the National Football League. Part I: Hand and Digital Injuries. In Journal of Sports Medicine. October 2008. Vol. 36. No. 10. Pp. 1937-1944.
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