Tibial arteries

Tibial Arteries are two of the most significant arteries located in the lower leg. They are the anterior tibial artery and the posterior tibial artery, both of which are branches of the popliteal artery. These arteries play a crucial role in supplying blood to the muscles and tissues of the lower leg and foot.

Anatomy

The tibial arteries originate from the popliteal artery in the popliteal fossa at the back of the knee. The popliteal artery divides into the anterior and posterior tibial arteries.

Anterior Tibial Artery

The anterior tibial artery travels down the front of the leg, alongside the tibia bone. It supplies blood to the anterior compartment of the leg and dorsal surface of the foot, after becoming the dorsalis pedis artery.

Posterior Tibial Artery

The posterior tibial artery, on the other hand, travels down the back of the leg and supplies blood to the posterior compartment of the leg and plantar surface of the foot. It further divides into the medial and lateral plantar arteries.

Function

The primary function of the tibial arteries is to supply oxygenated blood to the tissues of the lower leg and foot. They also play a role in thermoregulation, helping to regulate the body's temperature by adjusting blood flow to the skin.

Clinical Significance

The tibial arteries are often involved in peripheral artery disease, a common condition where the arteries become narrowed due to a buildup of fatty deposits. This can lead to symptoms such as pain when walking, known as claudication. In severe cases, it can lead to critical limb ischemia, a serious condition that requires immediate medical attention.

See Also

• Popliteal artery
• Anterior tibial artery
• Posterior tibial artery
• Peripheral artery disease
• Claudication
• Critical limb ischemia