The ~ligaments~ of the digits are encased in fibrous sheaths of ligamentary material. These sheaths allow |contraction| of the ~ligaments~ without incident friction on the ~nerves~ and vessels which surround them. Additionally, where these sheaths meet the joints between |phalanges|, or between a phalanx and a metacarpal, a large |joint capsule| may be seen. This |joint capsule| encloses the joint and any ~ligaments~ which may be attached to prominences at the bone ends.
