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
Kiri (given name) name include: Kiri (given name) Kiri is a given name appearing in various cultures. In Māori, "kiri" means "skin", "bark", or "rind". In Korean, the meaning of the name differs based on the hanja used to write each syllable of the name; there are 68 hanja with the reading "ki" and 26 hanja with the reading "ri" on the South Korean government's official list of hanja which may be registered for use in given names. In Finland, Kiri (male) name is listed in Finnish orthodox calendar. The name is a short version of Kyriakos (Saint Cyriacus the Anchorite. Notable people