Right tibialis posterior

Identify tibialis posterior

A deep posterior muscle directed toward the midfoot, rather than the toe tips.

The navicular is one useful attachment landmark, not its only insertion. Do not confuse this muscle with tibialis anterior on the front of the shin.

Sources: Posterior-leg anatomy tables · OpenStax

Toward the inner ankle and sole

It begins on the posterior tibia, fibula and interosseous membrane. Its distal attachments include the navicular, medial cuneiform and metatarsals two through four.

These tendons pass behind the medial malleolus under the flexor retinaculum. The retaining band, accompanying nerves and vessels are absent here: the viewer does not show a complete tarsal tunnel.

Sources: Posterior-leg anatomy tables · Leg & foot lab manual

Foot and toe actions

It inverts the foot and assists plantar flexion.

Moving the foot at the ankle and bending a toe are different actions. This viewer retains the source pose; rotating the camera does not demonstrate either movement or estimate muscle force.

Sources: Posterior-leg anatomy tables · OpenStax

Innervation

The tibial nerve supplies these deep posterior muscles. Its course, branches and the regional blood vessels are not included in the current model.

Sources: Posterior-leg anatomy tables

Read the model

Explore right tibialis posterior in 3D

1. Inspect the deep surface. Choose Back in isolation. Follow the distal outline toward the inner ankle, then restore context and compare it with the navicular. The bone link below opens that landmark separately.
2. Restore the surrounding structures. Show context restores 31 bones and 21 muscle parts on this side, including the foot bones. Surrounding surfaces may hide the selection; Isolate reveals it again.
3. Compare the three guides. The regional lower-leg close-up contains the tibia, fibula and thirteen muscle parts but no foot bones. Use this full-leg structure page for the distal bone context. Right deep posterior guides →

Sources and editorial status

This guide uses independently written explanations with links to the evidence behind them. Source checking and specialist anatomical review are separate steps; the latter is still pending.

1. TTUHSC El Paso — Hip, posterior thigh and leg anatomy tables

   Principal origins, distal attachments, general actions and tibial nerve supply. Summaries are not exhaustive insertion maps.

2. TTUHSC El Paso — Anterior leg & foot lab manual

   Medial ankle flexor tendons, flexor retinaculum and distal routes into the foot. Viewer instructions are original, not dissection instructions.

3. OpenStax Anatomy and Physiology 2e — Appendicular muscles of the pelvic girdle and lower limbs

   Deep posterior group and toe-flexor distinction. No textbook text or images reproduced.

3D geometry and its separate license are credited beneath the viewer. References do not imply endorsement of this site.