The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the The heart functions by pumping blood both to the lungs and to the systems of the body. To prevent blood from flowing backwards or “regurgitating” back into the heart, a system of one-way valves are present in the heart. The heart valves can be broken down into two types: atrioventricular and semilunar valves. Atrioventricular valves. The atrioventricular (AV) valves are located in the middle of the heart between the atria and ventricles and only allow blood to flow from the atria into Function and anatomy of the heart made easy using labeled diagrams of cardiac structures and blood flow through the atria, ventricles, valves, aorta, pulmonary arteries veins, superior inferior vena cava, and chambers. Includes an exercise, review worksheet, quiz, and model drawing of an anterior vi
The heart has three layers. They are the: Epicardium: This thin membrane is the outer-most layer of the heart. Myocardium: This thick layer is the muscle that contracts to pump and propel blood The heart is shaped like a cone, with the base pointing upwards. The density of an adult heart is 250–350 grams (9–12 oz). The heart is commonly characterized as being the size of a fist: 12 cm (5 in) long, 8 cm (3.5 in) high, and 6 cm (2.5 in) thick; however, this definition is debatable since the heart is likely to be slightly larger. Heart Wall Heart anatomy. The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior: The right margin is the small section of the right atrium that extends between the superior and inferior vena cava .
heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks. In fishes the heart is a folded tube, with three or four enlarged areas that correspond to the chambers in the mammalian heart. In animals Start studying Heart Anatomy Fill in the Blank. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Left Ventricle. pumps oxygenated blood to the body. Pericardium. Double-layered membrane surrounding the heart. Right Ventricle. pumps deoxygenated blood to the lungs. Inferior Vena Cava. A vein that is the largest vein in the human body and returns blood to the right atrium of the heart from bodily parts below the diaphragm. Pulmonary Valve.
A small angled mirror fixed inside the windshield of a motor vehicle, enabling the driver to see the vehicle or road behind. License plate. A sign affixed to a vehicle displaying a series of letters or numbers indicating that the vehicle has been registered with the state. Engine. A machine with moving parts that converts power into motion. Hood. Cold air intake the cars lungs, exhaust is the car blatter, fat is the air bags essentially. The list goes on and on. The co2 is our waste we exhale and the car exhales carbon monoxide. It’s Car Anatomy™ Convertible remix by car-stuff. Car Anatomy™ Sandero by CBA_EvanM. raceing Convertible by AaronParmar03. the car by florispet. Car Anatomy™ Opel Astra by CBA_EvanM. mini copper t by AaronParmar03. Car Anatomy™ Convertible remix by jmadem213. Car Anatomy™ honda fit by intelamd.
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