Freebase(0.00 / 0 votes)Rate this definition: Lions. The Lions, known as the Cats between the 1998 and 2006 seasons, are a South African professional Rugby union football team who competed in the Super Rugby competition. They have not achieved great success in the competition, finishing at the bottom of the table six times.
An artery is an elastic blood vessel that transports blood away from the heart. There are two main types of arteries: pulmonary arteries and systemic arteries. Pulmonary arteries carry blood from the heart to the lungs where the blood picks up oxygen. The oxygen-rich blood is then returned to the heart via the pulmonary veins. Systemic arteries deliver blood to the rest of the body. The aorta is the main systemic artery and the largest artery of the body.
Artery-definition and function. Artery is a flexible, muscular BLOOD vessel that carries blood from the HEART and oxygenated blood to tissues throughout the body. The wall of an artery has three layers: 1  adventitia, the outermost layer, which is primarily connective tissue that gives the artery its FLEXIBILITY.he bodyâs largest artery is the aorta, which carries blood from the heart to the network of arteries that then carry the blood throughout the body. Fibrous sheaths enclose most of the bodyâs arteries, usually along with the companion VEIN and NERVE.