atrium of ear

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• atrium — atrial, adj. /ay tree euhm/, n., pl. atria /ay tree euh/, atriums. 1. Archit. a. Also called cavaedium. the main or central room of an ancient Roman house, open to the sky at the center and usually having a pool for the collection of rain water.… …   Universalium

• ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

• Atrium — One of the two smaller chambers of the heart. Each atrium consists of an open space with recessed walls. (The plural of atrium is atria.) The right atrium receives deoxygenated blood from the body through the vena cava and pumps it into the right …   Medical dictionary

• atrium — /ˈætriəm / (say atreeuhm), /ˈeɪ / (say ay ) noun (plural atria /ˈætriə/ (say atreeuh), /ˈeɪ / (say ay )) 1. Architecture a. the central main room of an ancient Roman private house. b. a courtyard, mostly surrounded by colonnades, in front of an… …  

• atrium —   n. main courtyard like room of Roman house; cavity of heart or ear …   Dictionary of difficult words

• reptile — reptilelike, adj. reptiloid /rep tl oyd /, adj. /rep til, tuyl/, n. 1. any cold blooded vertebrate of the class Reptilia, comprising the turtles, snakes, lizards, crocodilians, amphisbaenians, tuatara, and various extinct members including the… …   Universalium

• Auricle — The ear (actually, the pinna which is the principal projecting part of the ear) or something that is ear shaped like the upper chamber (atrium) of the heart. * * * 1. The projecting shell like structure on the side of the head, constituting, with …   Medical dictionary

• human embryology — ▪ biology Introduction       the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth.       The human body, like that of most animals, develops from a single cell produced by the union of… …   Universalium

• Vein — A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system… …   Medical dictionary

• animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

• mammal — mammallike, adj. /mam euhl/, n. any vertebrate of the class Mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and, with the exception of the egg laying monotremes, giving birth to… …   Universalium