Week 10 - The Elbow, Wrist and Hand Flashcards
what 3 joints make up the elbow ?
- humeroulnar
- humeroradial
- proximal radioulnar
describe the humeroulnar joint
- hinge
- formed by articulation of SEMIULNAR NOTCH OF ULNA and TROCHLEA OF HUMERUS
describe the humeroradial joint
- formed by articulation between CAPITLUM OF HUMERUS with HEAD OF RADIUS
- movement restricted by annular ligament
describe the proximal radioulnar joint
- pivot joint
- articulation of HEAD OF RADIUS with the RADIAL FOSSA on the ULNAR
what 3 ligaments stabilise the elbow joint ?
- ulnar collateral ligament
- radial collateral ligament
- annular ligament
what are the flexor muscles of the elbow
- brachialis
- biceps brachii
- brachioradialis
- pronator teres
what are the extensor muscles of the elbow ?
- triceps brachii
- anconeus
what are the pronator muscles of the elbow ?
- pronator teres
- pronator quadratus
what are the supinator muscles of the elbow ?
- supinator
- biceps brachii
what are the wrist joints ?
- distal radioulnar joint
- radiocarpal
- midcarpal and intercarpal
- carpometacarpal
describe the distal radioulnar joint
- pivot
- allows radius to rotate around the ulnar
describe the radiocarpal joint
- condyloid
- allows for flexion, extension, radial and ulnar deviation
name the carpal bones
- scaphoid
- lunate
- triquetrum
- pisiform
- trapezoid
- trapezium
- capitate
- hamate
describe the midcarpal and intercarpal joints
- articulations between the proximal and distal row of carpals and between the individual carpals
describe the carpometacarpal joint
- modified saddle
- flexion, extension, abduction, adduction, circumduction, opposition