Common Carpometacarpal Joints

Parent Structures

• Joints of the Hand

Joint Classification

• Plane
• Synovial

Joint Actions

• Opposition
  • Innervator
    • C8 - Little Finger Only
  • Agonist
    • Opponens Digiti Minimi - Little Finger Only

Bones

• 2nd Metacarpal
• 3rd Metacarpal
• 4th Metacarpal
• 5th Metacarpal
• Capitate
• Hamate
• Trapezoid

Articulating Surfaces

• Base of 2nd Metacarpal
• Base of 3rd Metacarpal
• Base of 4th Metacarpal
• Base of 5th Metacarpal

Ligaments

• Dorsal Carpometacarpal Ligament
• Interosseous Ligament of the Common Carpometacarpal Ligament
• Palmar Carpometacarpal Ligament