Ch 4 Upper Limb Flashcards
(47 cards)
the hand consists of ___ bones
27
phalanges are:
bones of the digits
metacarpals are:
bones of the palm
carpals are:
bones of the wrist
the digits on one hand contain ____ phalanges which are ___ bones
14, long
the ____ of the metacarpals is where the most fractures occur
neck
metacarpal heads aka:
knuckles
the first metacarpal contains _____
2 sesamoid bones
the wrist has __ carpal bones
8
carpal bones are ___ bones
short
proximal row:
scaphoid, lunate, triquetrum, pisiform
distal row:
trapezium, trapezoid, capitate, hamate
the ____ is the most fractured carpal bone
scaphoid
carpal sulcus is:
the anterior surface of the wrist is concave
carpal tunnel syndrome results from:
compression of the median nerve inside the carpal tunnel
the forearm has __ bones the ___ and the ____, which are __ bones
2, radius and ulna, which are long bones
the radius is ___ and the ulna is ____
radius is lateral, ulna is medial
the arm has __ bones the ____
1, humerus
the proximal end of the humerus articulates with:
the shoulder girdle
the distal end of the humerus is called the ______, the ____ is medial, and _____ is lateral
humeral condyle, trochlea is medial, capitulum is lateral
IP joints are b/w the _____ are synovial hinge and only allow _____
b/w phalanges, allow flexion and extension
MCP joints are b/w ____ and allow:
b/w metacarpals and carpals and allow flexion, extension, abduction, adduction, and circumduction
the thumb can only:
abduct and adduct
CMC joint is b/w ____and allows the thumb to _____
the thumb and trapezium and allows the thumb to oppose (touch the fingertips)
