3rd Deep Transverse Ligament of the MCP

Proximal/Superior Attachment

• Palmar Ligament of the 5th MCP

Distal/Inferior Attachment

• Palmar Ligament of the 4th MCP

Attaching Structures as Insertion

• Palmar Aponeurosis

Joints

• 4th Metacarpophalangeal Joint (4th MCP)
• 5th Metacarpophalangeal Joint (5th MCP)