Elbow, Wrist and Forearm Flashcards
What articulations make up the elbow joint?
Humeroulnar and humeroradial form a synovial hinge joint that is the elbow
What joints make up the elbow complex?
Humeroulnar, humeroradial, proximal radioulnar
What part of the humerus articulates with the ulna? What unique property does this articulation give the joint?
The trochlea: Due to its hour glass shape is accounts for the carrying angle at the elbow
What ligament holds the radius in place and where does it attach
The annular ligament, and it wraps around the head of the radius attaching anteriorly and posteriorly to the radial notch of the ulna
What type of joint is the proximal radial ulnar?
Synovial pivot
Which ligament blends with the annular ligament?
LCL of the Elbow (Radial Collateral)
What are the main arteries that supply the elbow?
Superior and inferior ulnar collateral arteries
Recurrent ulnar + Radial Arteries
Profunda Brachii Artery
**All anastamose around the elbow
What movements occur at the distal radioulnar joints?
Pronation and Supination
What type of joint is the distal radioulnar?
Piviot Synovial
What is the TFCC?
A fibrocartilaginous disc that seprates the ulna, radus, and carpals (triquitrium and lunate)
What articulations make up the wrist?
Distal radius w/ scaphoid + lunate
TFCC w/ Triquitrium
What type of joint is the wrist?
Synovial condyloid
What ligaments reinforce the fibrous capsule of the wrist?
Palmar and Dorsal radiocarpal ligaments
What innervates the wrist?
Radial and Median interosseous branches
Deep + Dorsal ulnar nerves
