BIOL1300 Lecture Notes - Metacarpal Bones, Teres Major Muscle, Thoracodorsal Nerve
Document Summary
*radiocarpal joints (radius and scaphoid, lunate) (synovial condyloid flex/ext and add/abd) *greater flex than midc. **midcarpal joints (synovial complex plane gliding) *greater extend than rc. *extensor and flexor retinacula (transverse carpal ligs analogous to eyelets of fishing pole prevent bow-stringing) **radial and ulnar collateral ligs (prevent excessive ulnar and radial deviation, respectively: extensors: ecrl, ecrb, ecu. *ed, edmi, ei, epl, epb by virtue of the fact that they cross the wrist joint these muscles play a minor role in wrist extension not on exam nerves: radial (c6,7), deep branch radial (c7, 8), pin (c7, 8) *pin (c7,8: flexors: fcr, fcu, palmaris longus, *fds, fdp, fpl by virtue of the fact that they cross the wrist joint these muscles play a minor role in wrist flexion not on exam nerves: median (c6,7), ulnar (c7,8) , median (c7,8) *median, median ain (c8, t1)( (digits 2,3) ulnar (c8, t1) (digits 4,5), *thumb: saddle synovial joint (triaxial movment abd/add, flex/ext, opposition)
