Joints Connecting the Forearm and Hand Flashcards
Articulation between the ulnar notch of the radius, the articular disc, and the head of the ulna.
Distal radioulnar joint.
A fibrocartilage structure located with the medial side of the wrist joint distal to the ulna; cushions and supports the carpal bones.
Triangular fibrocartilage complex (TFCC).
The distal radioulnar joint is supported by two ligaments that originate from the dorsal and palmar aspects of the ulnar notch of the radius and extends to the base of the styloid process of the ulna.
Dorsal and Palmar radioulnar ligaments.
A wide sheet of connective tissue that connects the radius and ulna and function to support both the proximal and distal radioulnar joints.
Interosseous membrane.
The wrist complex consists of the ___________ and __________ joints that result in wrist flexion and extension and in radial and ulnar deviation.
Radiocarpal and midcarpal.
Articulation between the radius and the radioulnar joint with the proximal row of the carpal bones.
Radiocarpal joint
Articulation between the proximal row of the carpal bones with the distal row of carpal bones.
Midcarpal joint.
Reinforces the anterior capsule and attaches proximally to the distal radius and distally to the scaphoid, lunate, triquetrum, and capitate.
Palmar radiocarpal ligament.
Attaches proximally to the ulnar styloid process and the triangular fibrocartilage complex and distally to the lunate and triquetrum.
Palmar ulnocarpal ligament.
Reinforces the posterior capsule and attaches proximally to the distal radius and distally to the scaphoid, lunate and triquetrum.
Dorsal radiocarpal ligament.
Attaches from the ulnar styloid process to the triquetrum and pisiform.
Ulnar collateral ligament.
Attaches from the radial styloid process to the scaphoid and triquetrum.
Radial collateral ligament.
Interconnect carpal bones within and between bones.
Intercarpal ligaments.
