Lumbricals of the foot

Lumbrical muscle of the foot
Muscles of the sole of the right foot, viewed from below. Second layer. (Lumbricals visible at bottom.)
Details
OriginMedial borders of long flexor tendons
InsertionProximal phalanges and extensor tendons of the 4 lateral toes
ArteryMedial and lateral plantar arteries
NerveMedial and lateral plantar nerves (S3)
ActionsFlexes metatarsophalangeal joints, extends interphalangeal joints
Identifiers
Latinmusculus lumbricalis pedis
TA98A04.7.02.069
TA22685
FMA37453
Anatomical terms of muscle

The lumbricals are four small skeletal muscles, accessory to the tendons of the flexor digitorum longus muscle. They are numbered from the medial side of the foot.

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