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Plantar Intrinsic Muscles (Overview)
Region: Leg & Foot Muscles · All leg & foot muscles
Plantar Intrinsic Muscles (Overview) at a glance
| Origin | Calcaneus and the bones of the foot, in four layers of the sole |
|---|---|
| Insertion | Toes and their expansions |
| Actions | Fine toe control, arch support and balance on the forefoot |
| Nerve supply | Medial and lateral plantar nerves (S1–S3) |
◆ Good to know
Eighteen intrinsic muscles in four layers mirror the hand's arrangement; together with the plantar fascia they form the foot's tie-rods for the arches.
More Leg & Foot Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.