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: A vessel that carries blood high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated.The resultant form of hemoglobin (oxyhemoglobin) is what makes arterial blood look bright red.y contrast, a vein is a blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system which returns blood to the heart.