Forearm Flashcards
What are the two bones of the forearm
Radius and ulna
What are the radius and ulna connected by
Interosseous membrane
Where does the ulna articulate
Trochlear notch of the ulna articulates with the trochlea of the humerus
Where does the radial head articulate
Capitellum of the humerus
What movements do the proximal and distal radioulnar joints allow
Pronation and supination
In the forearm what bone pivots around other bones
Radius pivots around the ulna
How many muscles does the anterior compartment of the arm and what do they act as
2
Pronators
How many bones does the carpus have
8
2 rows of 4 bones
What bones does the distal radius articulate with
Scaphoid and lunate
Forms the radiocarpal joint
What are the proximal row of carpal bones (lateral to medial)
Scaphoid, lunate, triquetral and pisiform
Which bone of the carpal bones is not a true carpal bone and why
Pisiform
Small bone that develops in the tendon of flexor carpi ulnaris
What are the distal row of the carpal bones (lateral to medial)
Trapezium (base if the thumb), trapezoid, capitate (located centrally) and hamate
What is the largest carpal bone
Capitate
What is the bony process anterior on the hamate
Hook
What lies distal to the carpus
Metacarpals
