Saturday, June 29, 2013

HAND

                                                   ANATOMY

           Basic Surface Anatomy



Segments
Distal phalanx, Middle phalanx, Proximal phalanx

Regions
Thenar and Hypothenar

Creases
Distal interphalangeal, Proximal interphalangeal, Palmar digital





                                                PALMAR HAND                 DORSAL PALM

HAND BONES AND JOINTS

Each Finger has 3 bones and 2 joints, except thumb (2 bones and 1 joint).
3 bones - distal phalanges, middle phalanges, proximal phalanges       
Thumb - only distal and proximal phalanges and one interpahalangeal joint.
2 joints - distal interphalangeal and proximal interphalangeal ( joint between phalanges are know as interphalageals)

Palm bones -- 5 metacarpal bones, joints between phalangeals and metacarpal bones are metacarpophalangeals( 5 joints)
Wrist bones are also know as Carpal bones. They are 8 carpal bones and joint between metacarpals and carpals are carpometacarpal (basilar joint).

scaphoid, lunate, triquetrum, pisiform, (lower row)
trapezium, trapezoid, capitate, hamate (upper row)
below picture is dorsal aspect of the wrist.