Transversus Abdominis Muscle
Tibialis Anterior Muscle – Attachments, Actions & Innervation
Attachments of Tibialis Anterior Muscle: Origin & Insertion
Origin: (proximal attachments):
- Lateral condyle & superior 2/3 of anteriolateral surface of tibia;
- Interosseous margin.
Insertion: (distal attachments):
- Medial & plantar surfaces of medial cuneiform.
- Base of 1st metatarsal along the medial & plantar surfaces.
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Actions of Tibialis Anterior Muscle on the foot:
a. Dorsiflexes foot at ankle.
b. Inverts foot at ankle.
Nerve to Muscle and its Spinal Segment:
Deep peroneal nerve (L4, L5, S1).