Posterior Tibial Artery And Its Branches

The posterior tibial artery runs down the leg, exactly below the knee. Its branches emerge off from the popliteal artery and supplies filtered blood to the leg’s posterior compartment and some portion of the foot.

During the course of this blood vessel, it divides into varies branches. This incorporates the fibular, medial plantar, and lateral plantar arteries. While the artery delivers oxygenated blood, the poster tibial vein drains oxygen-depleted blood and then forces it back toward the heart and lungs for re-filtration.

The posterior tibial artery is substantial, or able to be felt, in certain parts of human body. A beat can be recognized at the leg’s Pimenta point, which is situated near the medial malleolus or the Achilles tendon’s insertion point. The medial malleolus is basically the bony projection locate on the inside of both ankles. That is why often, doctors way in a patient’s pulse via Pimenta’s point. By doing this, they can able to create an assessment related to both arterial health and the patient’s risks for PVD peripheral vascular disease. This brittle situation causes circulatory obstruction unrelated to the heart or the brain.

posterior tibial artery

Anterior Tibial artery:

The anterior tibial artery is the most censorious arteries located at the bottom of the leg. It directs just above the interosseous membrane (fibrous tissue that stabilizes the bones and helps in separating the muscles of the leg) and goes in the front portion of the leg (shin region), eventually running down to the lateral foot surface. The anterior tibial vein runs opposite to this artery right through its course. Then, It crosses the fore part of the ankle joint, where the dorsal pedal artery starts.

The prominent function of this artery is to deliver oxygenated blood to the muscles in the anterior fore compartment of the leg. As this artery goes throughout the interosseous membrane, it branches off into the dorsal pedal artery, which carries filtered blood to the dorsal (top-most) surface of the foot. This further branches out into tarsal, lateral, and medial branches respectively, and lastly the artery come to a climax by intersecting the deep plantar and arcuate arteries.

Anterior Tibial vein:

These veins are basically instinctual veins that run opposite to the anterior tibial artery. Oxygenated blood is supplied via superficial veins situate near the surface of the skin and as well into perforating veins, which are deep veins that penetrate the deep fascia of muscles. From the perforating veins, blood delivers the anterior tibial veins deep inside the bottom portion of the leg. These veins then intersect the posterior tibial veins and cross the back portion of the knee. This makes the popliteal vein in the upper leg, which is now turned into the femoral vein. Whereas, the anterior tibial veins join the dorsalis pedis vein in the ankle as well foot.

This network of veins supplies oxygenated blood into the fibula and tibia. In the tummy, the abdominal aorta separates the left and right iliac arteries respectively. These arteries branch out via the pelvis and form into the femoral arteries. The femoral artery then changes into the popliteal artery in the femur and further branches out into the both posterior and anterior tibial arteries, which carry filtered blood to the tibialis anterior muscles.

Posterior Tibial Artery Branches:

Peroneal artery:

The peroneal artery supplies blood to the lateral (or outer-side) portion of the leg. It originates from the posterior tibial artery and is connected to the dorsal artery of the foot, the lateral tarsal artery, the lateral malleolar artery, and the lateral plantar arteries. The peroneal artery distributes blood to the soleus muscle, the fibula muscles, the ankle joint, the big toe long flexor muscle, and the inferior tibiofibular joint. The peroneal artery is also connected to a cluster of small veins known as the fibular veins.

Medial Plantar artery:

This artery is among the branches of the posterior tibial artery given off under the flexor retinaculum. The artery then approaches the medial side of the sole, followed by the medial plantar nerve. It then passes into the abductor hallucis and then in the interval, which locates between that muscle and the flexor digitorum brevis. At the bottom of the very first metatarsal bone, it terminates into 3 digital branches, which anastomose with the corresponding plantar metatarsal arteries to make the common digita1 arteries. However, the most medial then passes afterward along the medial border of the toe, which anastomoses with the 1st plantar metatarsal artery. The all the main branches of the medial plantar artery come after closely those of the medial plantar nerve.

Lateral Plantar Artery:

Lateral planter artery emerges with the medial plantar artery as a prominent branch of the posterior tibial artery under the flexor retinaculum. It moves laterally, followed by the lateral plantar nerve to the lateral border of the sole, where it enters to the base of the fifth metatarsal bone. It then changes deep to accompany the deep branch of the lateral plantar nerve at this turn and still runs across the bases of the metatarsal bones, making the plantar arch. It then runs to the interval between such bases of the 1st and also a 2nd metatarsal bone to anastomose with the dorsalis pedis artery by which the plantar arch is settled. It passes in between the calcaneus and abductor hallucis as it journeys across the sole from the proximal till the distal end. It lies in between the flexor digitorum Brevis and flexor accessories and gives off a superficial branch, that runs on the lateral aspect of the toe as the proper digital artery of the lateral aspect of that toe.

Hi, This is Hamza Khan from Peshawar, Pakistan. I am a 2nd prof MBBS Student at Bannu Medical College and a hobby Blogger. The Purpose of this site is to share my knowledge and Guide new Medical Students.

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