Carpal(intercarpal) joints Flashcards
Articulation of Joint
Between carpal bones of proximal row; joints between carpal bones of distal row.
Midcarpal Joint: synovial joint between proximal and distal rows of carpal bones
Pisiform Joint: synovial joint between pisiform and triquetrum
Type of Joint
Plane synovial joint
Joint Capsule
Fibrous layer of joint capsule surrounds joints; lined by synovial membrane; pisiform joint is separate from other carpal joints
Ligaments
Carpal bones united by anterior, posterior, and interosseous ligaments
Movements
Small amount of gliding movement possible; flexion and abduction of hand occur at midcarpal joint
Innervation
Anterior interosseous branch of median nerve, posterior interossseous branch of radial nerve, and dorsal deep branches of ulnar nerve