Wikis > Anatomy > Muscles > Lumbricals

Proximal attachment – tendons of flexor digitorum longus after division into its 4 slips
Distal attachment – medial dorsal aspect extensor expansion
Open chain function – flexion of MPJ’s and extension of IPJ’s
Closed chain function – plantarflexes the digit against the ground during propulsion
Nerve supply – lateral plantar (digits 3 to 5) and medial plantar (2nd digit)
Arterial supply – plantar metatarsal artery

It's turning into "Lumbrical Week" here at The Gait Guys.The lumbricals of the foot attach proximally to the sides of...

Posted by The Gait Guys on Tuesday, July 11, 2017

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