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IP joints of the fingers, muscles - Coggle Diagram
IP joints of the fingers
has
proximal IPJ
distal IPJ
PIP & DIP articulations are composed of
the head of a phalanx
and the base of the phalanx distal to it
True hinge joint
1 degree of freedom
Flexion/Extension
Each joint has
a capsule
2 collateral ligament
volar plates
Joint structure is similar to the MCP
Only difference is that there is little posterior articular surface at the PIP and DIP,
allowing hyperextension
DIP allows passive hyperextension
where as PIP does not
Volar plates reinforce IP joints and
enhance stability and
limit hyperextension
With flexion of the digits
2 more items...
muscles