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Tibialis Anterior
Region: Leg & Foot Muscles · All leg & foot muscles
Tibialis Anterior at a glance
| Origin | Lateral surface of the upper tibia and the interosseous membrane |
|---|---|
| Insertion | Medial cuneiform and base of the first metatarsal (underside) |
| Actions | Lifts the foot upward (dorsiflexion); Turns the sole inward (inversion) |
| Nerve supply | Deep fibular nerve (L4–L5) |
◆ Good to know
The main dorsiflexor: when it is weak (foot drop), the toes drag and the patient lifts the knee high in a steppage gait.
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.