Atrium (heart) now used for an appendage of the atrium. Humans have a four-chambered heart consisting of the right atrium, left atrium, right ventricle, and left ventricle. The atria are the two upper chambers. The right atrium receives and holds deoxygenated blood from the superior vena cava, inferior vena cava, anterior cardiac veins and smallest cardiac veins and the coronary sinus, which it then sends down to the right ventricle (through the tricuspid valve) which in turn sends it to the pulmonary artery for pulmonary circulation. The left atrium receives the oxygenated blood from the left and right pulmonary veins, which it
Matthew (given name) United Kingdom, Matthew has been among the 10 most popular male names. Matthew has been in the top 1,000 most popular male names in Australia, Canada and United States. Matthew (given name) Matthew is an English language given name. It ultimately derives from the Hebrew name "מתתיהו" ("Matityahu") which means "Gift of Yahweh". The Hebrew name "" (Matityahu) was transliterated into Greek to "Ματταθίας" ("Mattathias"). It was subsequently shortened to Greek "Ματθαῖος" ("Matthaios"); this was Latinised as "Matthaeus", which became "Matthew" in English. The popularity of the name is due to Matthew the Apostle who in Christian theology is one