Definition of piece rate: Payment by results. Wage determination system in which the employee is paid for each unit of production at a fixed rate.
The main arteries in the neck are the common carotids arising differently, one on each side (see the images below). On the right, the common carotid arises at the bifurcation of the brachiocephalic trunk behind the sternoclavicular joint; on the left, it arises from the highest point on arch of the aorta in the chest.
The largest artery is the aorta, the main high-pressure pipeline connected to the heart's left ventricle. The aorta branches into a network of smaller arteries that extend throughout the body. The arteries' smaller branches are called arterioles and capillaries.The pulmonary arteries carry oxygen-poor blood from the heart to the lungs under low pressure, making these arteries unique. Coronary artery disease makes a heart attack more likely. 2  Carotid artery disease: Atherosclerosis with narrowing of one or both of the carotid arteries in the neck. 3  Disease of the carotid arteries makes stroke more likely.