Flexor Pulley System   Annular pulleys Annular pulleys number 5, A1-A5 located between the joints. A2 and A4 are critical to preserve so as to prevent bowstringing of the tendon with digital Flexion. A2 & A4 pulleys are important, they originate from the bone and A1, A3, A5 pulleys originate from the volar plate. Cruciate…