elbow joint Flashcards
Bones of the elbow joint
Humerus, radius + ulna
Types of syonvial joints found within the elbow joint
Condylar, trochlear + trochoid (pivot)
The condylar joint between … and … allows for … and …
The humeral condyle + the head of the radius, flexion-extension + rotation on a longitudinal axis
The trochlear joint between … and … allows for … only
The humeral trochlea + the ulna, flexion-extension
The trochoid joint between … and … allows for …
The radial head + radial notch in the ulna, pronation-supination
Name the 3 ligaments of the elbow joint that allow for flexion-extension
Radial + ulnar collateral ligament, anular ligament
The radial collateral ligament arises from … and goes to …
The lateral epicondyle, the supinator crest in the ulna
The anterior portion of the ulnar collateral ligament arises from … and inserts into …
Medial epicondyle, tuberculus sublimis in the ulna
Name the 3 components of the ulnar collateral ligament
Anterior, posterior + transverse
The anular ligament of the radius goes from … to …
Anterior border of the radial notch in the ulna to the posterior border
Name the 2 ligaments of the proximal radio-ulnar joint that allow for pronation-supination
Anular ligament of the radius + quadrate ligamente
Explain the trajectory of the quadrate ligament
It goes from the inferior border of the radial notch (ulna) to the anteromedial surface of the radial neck
The radio-ulnar syndesmosis is made up of …
The interosseous membrane + the oblique cord
The distal radio-ulnar joint is made up of… (ligaments)
The dorsal + palmar radioulnar ligaments
Structure found on the head of the ulna in the distal radio-ulnar joint that separates it from the carpal bones
Articular disc
The articular disc in the distal radioulnar joint originates in… and goes to…
The styolid process of the ulna, the medial border of the carpal surface of the radius
The interosseous membrane limits the … displacement of the radius
Proximal
The distal radio-ulnar joint and the proximal radio-ulnar joint have the same axis. What effect does that have on the movement?
They both move at the same time
