Arches of the Hand Flashcards
What do arches of the hand do?
aid the function of the hand
allow the hand to conform to objects
What are the transverse arches?
Carpal arch
Metacarpal arch
Carpal arch
formed by the carpal bones
concave in shape
allows little movement
Metacarpal arch
formed by metacarpal heads
can widen or flatten
providing stability and mobility in the hand
What are the longitudinal arches?
Formed by the carpal bones metacarpal bones and the corresponding phalanges
assumes a wide variety of shapes
What are the oblique arches?
Formed by the thumb as it opposes each of the fingers
palmar gutter runs across the various oblique arches of the palm
it bases fro the base of the hypothenar eminence to the head of the 2nd metacarpal