SAR HS 369 Lecture Notes - Lecture 9: Flexor Digitorum Profundus Muscle, Flexor Pollicis Longus Muscle, Flexor Digitorum Superficialis Muscle

• School: Boston University
• Department: Health Sciences
• Course: SAR HS 369
• Professor: Judy Schotland

Document Summary

Heads of metacarpal makes up transverse metacarpal arch. Curved hands, back of the hand is not flat has same curvature as transverse carpal arch. Base proximal and head distal for all long bones, both metacarpals and phalanges. Tough, strong connective tissue connecting medial and lateral carpal bones. Carpal tunnel = between carpal bones and flexor retinaculum flexor retinaculum & carpal arch together. Flex wrist, the distal of wrist is it - beginning of hand. Tendons of fds + fdp = 8 tendons + fpl 1tendons = totally 9 tendons pass through tendons pass through flexor digitorum profundus, flexor digitorum superficialis and flexor pollicis longus. Every time when opening and closing fist, tedons go through carpal tunnel. Everytime opening and closing fingers/hands, those tendons go back and forth through carpal tunnel. Much thinner and less substantial than flexor retinaculum. Cross the wrist rather than being distal to it. Radial side to the radius, cross the wrist, attach to ulna + triquetrum.