Heart depending on what is counted as a chamber. The atrium and ventricle are sometimes considered "true chambers", while the others are considered "accessory chambers". Primitive fish have a four-chambered heart, but the chambers are arranged sequentially so that this primitive heart is quite unlike the four-chambered hearts of mammals and birds. The first chamber is the sinus venosus, which collects deoxygenated blood from the body through the hepatic and cardinal veins. From here, blood flows into the atrium and then to the powerful muscular ventricle where the main pumping action will take place. The fourth and final chamber is the
Which? to guarantee the debts of the Association to a maximum of 50p. It also means they will receive Annual Accounts, AGM Minutes, and be able to vote on Resolutions that change the governing Articles. None of the Council, or Board members is paid [other than the employees], although they are entitled to claim reasonable expenses. Tim Gardam became Chairman on November 18th 2015, replacing Patrick Barwise who had held the role since 2010. Which? Which? is a brand name used by the Consumers' Association, a registered charity (No. 296072) and company limited by guarantee (No. 580128), which is based in