As the arteries narrow, blood supply to the muscles and tissues in the legs and feet ... doctors compare the blood pressure in the ankle to that in arm using a test called the ankle brachial index ...

A blood clot within a leg or arm artery can also occur. The limb is deprived of oxygen-rich blood, which causes deep, cramping muscle pain. Learn More: Signs of a Blood Clot in the Arm 3.

The main supply of blood to the brain is carried by the carotid arteries. The carotid arteries branch off from ... A stroke may result in problems such as weakness in an arm or leg or may cause ...