Elbow Flashcards
Humorulnar joint
Uniaxial, hinge joint. Trochanter and trochanter notch. Flexion and extension and sagittal plane, frontal axis
Trochanter notch concave; more movable. Concave on convex, same direction, both moving into early; flexion
Humeroradial joint
Uniaxial hinge joint, flex extend in sagittal plane. Capitulum of the humerus and head of the radius
Head of radius concave; more movable, concave moving on convex, same direction
radioulnar joint; proximity
Proximal:Uniaxial pivot joint. Head of radius pivots with radio notch of ulna
Pronation and supination, transverse plane vertical axis
Side of the head of the radius, convex. Radial notch, concave. Convex on concave, opposite direction
Pronation: articular surface (medial)slides posteriorly. Opposite end (O) end of bone moves anteriorly.
Supination: articular surface moves anteriorly, opposite side of those posteriorly.
Radioulnar joint; distally
Distal: distal end of the radius rotates around the distal end of the ulna.
Ulnar notch of radius. Concave moving on convex. Same direction. Articular surface and lateral surface are moving into your yearly during pronation. Supination; posteriorly
Annular ligament
Anterior and posterior her to the radio notch of the ulna.
Medial collateral ligament
Medial epicondyles, coronoid process, Olecranon-process. Stops a Valgus force
Lateral collateral ligament
Lateral epicondyles, lateral side of the ulna, annular ligament. Stops Vargas force