Human body include the heart, lungs and liver. Many organs reside within cavities within the body. These cavities include the abdomen and pleura. The circulatory system comprises the heart and blood vessels (arteries, veins and capillaries). The heart propels the circulation of the blood, which serves as a "transportation system" to transfer oxygen, fuel, nutrients, waste products, immune cells and signalling molecules (i.e., hormones) from one part of the body to another. The blood consists of fluid that carries cells in the circulation, including some that move from tissue to blood vessels and back, as well as the spleen and bone marrow.
Tissue bank it is for transplant and/or therapy. The American Association of Tissue Banks (AATB) is the most recognized accrediting body for American tissue banks. At the first European Conference on Problems of Tissue Banking and Clinical Applications, held in Berlin on Oct 24-26, 1991, many European countries joined together to adapt common practices regarding tissue banks and the European Association of Tissue Banks was created. Body brokers are firms or individuals that buy and sell cadaver human body parts for use of research. Trade in these body parts is performed in a manner similar to other raw materials, though many brokers