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Information about Tarsal Tunnel

The mucous sheaths of the tendons around the ankle. Medial aspect.
Dorlands/Elsevier t_23/12832517
The tarsal tunnel is found along the inner leg behind the medial malleolus.

The tarsal tunnel is made up of bone on the inside and the flexor retinaculum on the outside.

Nerve distribution

The posterior tibial nerve, a major artery, veins, and tendons travel in a bundle along this pathway, through the tarsal tunnel. In the tunnel, the nerve splits into three different paths.

One nerve (calcaneal) continues to the heel, the other two (medial plantar nerve and lateral plantar nerve) continue on to the bottom of the foot.

Contents of tunnel

One common mnemonic used to remember the contents is "Tom, Dick and Harry".[1][2][3] or alternatively Tom, Dick and very nervous Harry if the nerve and blood vessels are included

See also

Additional images


Coronal section through right talocrural and talocalcaneal joints.

Muscles of the back of the leg. Deep layer.

The popliteal, posterior tibial, and peroneal arteries.

Nerves of the right lower extremity Posterior view.

Muscles of the sole of the foot. Second layer.

The plantar arteries. Deep view.

The plantar nerves.


References

External links

 •  • [ e]
General anatomy of lower limbs
Buttocks and Thigh
Cnemis (anatomic leg)
Foot
Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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medial malleolus.
  • The medial surface of this process is convex and subcutaneous;
  • its lateral or articular surface is smooth and slightly concave, and articulates with the talus;
  • its anterior border

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The medial plantar nerve (internal plantar nerve), the larger of the two terminal divisions of the tibial nerve, accompanies the medial plantar artery.

From its origin under the laciniate ligament it passes under cover of the Abductor hallucis, and, appearing between
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The lateral plantar nerve (external plantar nerve) is a branch of the tibial nerve, in turn a branch of the sciatic nerve and supplies the skin of the fifth toe and lateral half of the fourth, as well as most of the deep muscles, its distribution being similar to that of
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The Tibialis posterior is the most central of all the leg muscles.

It is the key stabilising muscle of the lower leg.

Origin and insertion

It originates on the inner posterior borders of the tibia and fibula.
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The Flexor digitorum longus is situated on the tibial side of the leg. At its origin it is thin and pointed, but it gradually increases in size as it descends.

Origin and insertion


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The posterior tibial artery of the lower limb carries blood to the posterior compartment of the leg and plantar surface of the foot, from the popliteal artery. It is accompanied by a deep vein, the posterior tibial vein, along its course.
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In anatomy, the posterior tibial vein of the lower limb carries blood from the posterior compartment and plantar surface of the foot to the popliteal vein which it forms when it joins with the anterior tibial vein.
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The tibial nerve is a branch of the sciatic nerve. The tibial nerve passes through the popliteal fossa to pass below the arch of soleus.

In the popliteal fossa the nerve gives off branches to gastrocnemius, popliteus, soleus and plantaris, and the sural nerve.
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The Flexor hallucis longus muscle (FHL) is a muscle of the leg. It is one of the deep muscles of the posterior compartment of the leg. the other deep muscles of the leg are flexor digitorum longus and tibialis posterior. FHL is the largest and most powerful of these deep muscles.
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For the 2006 film, see .


"Tom, Dick and Harry" is a placeholder phrase referring to several randomly-selected people, not necessarily three and not necessarily all men. "Every Tom, Dick and Harry" can refer to the general public.
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MeSH D013641

Tarsal tunnel syndrome is a painful foot condition in which the tibial nerve is impinged and compressed as it travels through the tarsal tunnel. Tarsal Tunnel Syndrome (TTS) is also known as Posterior Tibial Nerve Neuralgia.
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carpal tunnel is the space between this sheath (above) and the bones (below) making up the wrist and hand (carpal bones).

Contents

  • Median nerve
  • Tendons of the following muscles (not the muscles themselves):

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Not to be confused with pneumonic.


A mnemonic (pronounced IPA: /niːˈmɒnɪk/ in RP, /nɨˈmɑnɨk/
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Human anatomy is primarily the scientific study of the morphology of the adult human body.[1] It is subdivided into gross anatomy and microscopic anatomy.[1]
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In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis.[1] The largest bone in the human body, the femur, is in the leg.
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In humans the thigh is the area between the pelvis and buttocks and the knee. Anatomically, it is part of the lower limb.

The single bone in the thigh is called the femur.
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The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. Its anatomy is very important for operating on hernia patients.

It forms the base of the inguinal canal which is the place from where the inguinal hernia develops.
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The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen.

Its fibers are arranged in interlacing bundles mainly transverse in direction; the uppermost bundle is attached to the obturator tubercles and completes the obturator canal
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The femoral ring is the base of the femoral canal. It is directed upward and is oval in form, its long diameter being directed transversely and measuring about 1.25 cm.
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femoral canal, and contains some lymphatic vessels and a lymph gland imbedded in a small amount of areolar tissue. The femoral canal is conical and measures about 1.25 cm. in length.
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The femoral sheath (crural sheath) is formed by a prolongation downward, behind the inguinal ligament, of the fasciæ which line the abdomen, the transversalis fascia being continued down in front of the femoral vessels and the iliac fascia behind them.
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The femoral triangle (of Scarpa) is an anatomical region of the upper inner human thigh.

Boundaries

It is bounded by:
  • (superiorly) the inguinal ligament
  • (medially) the adductor longus muscle border) (medial border)

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The adductor canal (Subsartorial/Hunter’s canal) is an aponeurotic tunnel in the middle third of the thigh, extending from the apex of the femoral triangle to the opening in the Adductor magnus, the Adductor hiatus.
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The adductor hiatus is the termination of the adductor canal at the knee, in the adductor magnus.

The femoral artery and femoral vein pass through the hiatus in adductor magnus. After they do, they are called the popliteal artery and popliteal vein.
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The fascia lata is the deep fascia of the thigh. It is an investment for the whole of the thigh, but varies in thickness in different parts.

Thus, it is thicker in the upper and lateral part of the thigh, where it receives a fibrous expansion from the Glutæus maximus, and
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saphenous opening (or saphenous hiatus, or fossa ovalis femoris).

It transmits the great saphenous vein, and other, smaller vessels.

The fascia cribrosa, which is pierced by the structures passing through the opening, closes the aperture and must be
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The iliotibial tract (iliotibial band) is a superficial band of fascia covering the thigh. It is a downward continuation of the Fascia lata.

It is attached to the lateral condyle of the tibia.
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fascial compartments, and are formed by tough connective tissue septa. These compartments usually have a separate nerve and blood supply to their neighbours. The muscles in each compartment will often all be supplied by the same nerve.
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