3rd Proximal Phalanx of the Hand

Parent Structures

• Phalanges

Bone Classification

• Long

Bony Features

• Base of 3rd Proximal Phalanx of the Hand
• Head of 3rd Proximal Phalanx of the Hand
• Shaft of 3rd Proximal Phalanx of the Hand

Attaching Structures as Origin

• Palmar Ligament of the PIP of the 3rd Phalanx of the Hand - Attached to the Neck by the Joint Capsule

Attaching Structures as Insertion

• 2nd Dorsal Interossei of the Hand - Dorsal Digital Expansion
• 2nd Lumbrical of the Hand - Lateral Edge of the Dorsal Digital Expansion
• 3rd Dorsal Interossei of the Hand - Dorsal Digital Expansion

Associated Joints

• 3rd Metacarpophalangeal Joint (3rd MCP)
• PIP of the 3rd Phalanx of the Hand

Structures Attaching to Bony Features as Origin

• Head of 3rd Proximal Phalanx of the Hand
  • Collateral Ligament of the PIP of the 3rd Phalanx of the Hand

Structures Attaching to Bony Features as Insertion

• Base of 3rd Proximal Phalanx of the Hand
  • Collateral Ligaments of the 3rd MCP - Palmar Aspect of the side
  • Palmar Ligament of the 3rd MCP - Anterior Margin