Freebase. Maasai people. The Maasai are a Nilotic ethnic group of semi-nomadic people inhabiting southern Kenya and northern Tanzania. They are among the best known local populations due to their residence near the many game parks of the African Great Lakes, and their distinctive customs and dress. The Maasai speak Maa, a member of the Nilo-Saharan language family that is related to Dinka and Nuer.
Path of a Red Blood Cell. The circulatory system consisting of the heart, arteries, capillaries, and veins, is the pumping mechanism that transports blood throughout the body.In the heart, the left ventricle contracts, pushing red blood cells into the aorta, the body's largest artery.rom here, blood moves through a series of increasingly smaller arteries, until it reaches a capillary, the junction between arteries and veins. Here oxygen molecules detach from the red blood cells and slip across the capillary wall into body tissue.
Circulatory system is an organ system where nutrients pass through. Cardiovascular and lymphatic systems make up the complete circulatory system. Arteries, veins, and the heart are the main organs in the circulatory system. Examples of nutrients that are passed through are electrolytes, amino acids and lymph. Also other substances passed through the specific organ system are gases, hormones and blood cells to and from cells.