DIP of the 4th Phalanx of the Hand

Parent Structures

• Joints of the Hand

Joint Classification

• Hinge
• Synovial

Joint Actions

• Flexion
  • Innervator
    • C8
    • C7
  • Agonist
    • Flexor Digitorum Profundus
• Extension
  • Innervator
    • C8
    • C7
  • Agonist
    • Extensor Digitorum

Bones

• 4th Distal Phalanx of the Hand
• 4th Middle Phalanx of the Hand

Articulating Surfaces

• Base of 4th Distal Phalanx of the Hand
• Head of 4th Middle Phalanx of the Hand

Ligaments

• Collateral Ligament of the DIP of the 4th Phalanx of the Hand
• Palmar Ligament of the DIP of the 4th Phalanx of the Hand