elbow, forearm, wrist test Flashcards
What are the bones of the humerus?
lateral epicondyle and medial epicondyle
What are the bones of the radius?
head of radius and radial styloid process
What are the bones of the ulna?
olecranon process and ulnar styloid process
How many carpals are there?
8 carpals
What does the proximal row articulate with?
The radius and the ulna
Proximal row carpals?
Scaphoid, lunate, triquetral, pisiform
What does the distal row articulate with?
the metacarpals
distal row carpals?
Trapezoid, Capitate, Trapezium, Hamate
how many metacarpals
5
how many phalanges
14
What are the articulations of the elbow?
Humeroulnar Joint - hinge joint
Humeroradial Joint - hinge joint
Proximal Radioulnar Joint - pivot joint
What are the articulations of the forearm?
Proximal and distal radioulnar joints
What is the articulations of the fingers
MCP joint and PIP joint
What is the ligament of the elbow?
What do they each do and another name?
Ulnar collateral (Medial collateral lig) - protects from valgus
Radial Collateral (Lateral collateral lig) - protects from varus
Annular - forms a sling around the radial head for free rotation
What is the ligament of the forearm? Motion?
Interosseous membrane - holds the radius and ulna together
What are the ligaments for the wrist?
what do they each do and their action?
Ulnar Collateral ligament - protects wrist from valgus
Radial Collateral ligament - protects wrist from varus
Flexor Retinaculum - (palmar of wrist) holds flexor tendon in place
Extensor Retinaculum - (dorsal of wrist) holds extensor tendon in place