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Tibialis Posterior Anatomy: Origin, Insertion, Action, Innervation

Tibialis Posterior Anatomy Study: Origin, Insertion, Action, Innervation and Blood Supply
Tibialis Posterior Anatomy

Origin: Proximal two-thirds of the posterior surfaces of the tibia and the fibula and the interosseus membrane.
Insertion: Passing behind the medial malleolus to attach to the bones that form the arch of the foot: the navicular, each cuneiform and cuboid the calcaneus and metatarsals 2,3,4
Action: Inverts and adducts the free foot, assists in plantar flexion. Prevents excessive pronation of the foot during walking.
Innervation: Tibial nerve (L4 – 5 )
Blood Supply: Branches from the anterior tibial artery and posterior tibial artery

Synergist: Gastrocnemius, Flexor digitorum longus, Flexor hallucis longus, Peroneus longus, Peroneus brevis, Soleus, Plantaris

Antagonist: Extensor hallucis longus, Extensor digitorum longus, Tibialis anterior, Peroneus tertius

For pain and symptom information see: Tibialis Posterior Pain and Symptoms

Primary Action of the Tibialis Posterior:

1. Inversion of the foot at the subtalar joint

    • Agonists: Tibialis Anterior
    • Antagonists: Peroneus Longus, Peroneus Brevis

Secondary Action of the Tibialis Posterior:

1. Assists with plantar flexion of the foot at the ankle

    • Agonists: Gastrocnemius, Soleus
    • Antagonists: Tibialis Anterior

2. Supports the medial longitudinal arch of the foot


Musculoskeletal Anatomy Flashcards

Musculoskeletal Anatomy Flashcards Musculoskeletal Flashcards Are you a student or professional therapist who needs to brush up on the musculoskeletal system? Dr. Joseph E. Muscolino DC has developed a comprehensive set of flashcards that will help develop a mind’s picture of exactly where the muscles lie under the skin. A highly recommended study aid for students. Great for non students who want an easy comprehensive anatomy guide.

Anatomy Coloring Book


The Anatomy Coloring Book is one of the best study and reference books for beginning anatomy students. The diagrams are clearly labeled and allow you to see the relationship and placement of the various structures of the body. You will also be surprised how the act of coloring will help with recall. But this is not just a beginners book, it is also great for practitioners and therapists to have on hand to use with clients and patients to use as a visual reference.

Basic Clinical Massage Therapy


Out of the scores of books in my office Basic Clinical Massage Therapy is by far the most referenced book in my library. The musculoskeletal system is overlaid on human models allowing you to learn the precise location, origin and insertions of each muscle. The models are pictured in various poses throughout the book which also helps you visualize muscles in motion and their actions relationship with the skeletal structure and other muscles. Though it is written for massage therapists, it is an excellent book for anyone who wants to learn about the muscular system. MT’s will benefit from recommended treatments for each muscle.



The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons

Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds

Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando

Massage Therapy Principles and Practice – Susan Salvo

Theory & Practice of Therapeutic Massage – Mark Beck


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