The normal functioning of the heart and the lungs?
546613
The heart is what pumps blood and is the centerpiece of the circulatory system. Without it the blood could not carry the nutrients the body needs. The lungs take in oxygen to help feed the bloodstream. Basically both organs do the same job, just in different ways and for the same end. Keeping YOUR blood infused with the nutrients the body requires to sustain itself. Hope this helps.
388349
The right lung has three lobes (superior, middle, and inferior from top to bottom), and the left only has two (superior and inferior).  \n\nA side note: this difference has been attributed to the fact that the heart resides a bit more in the left chest than the right, and three lobes plus the heart would be a bit too snug for the lungs or heart to function properly.
667354
The Cardiovascular System\n\n\n The cardiovascular system and the lymphatic system form what is collectively called the circulatory system. Together, these systems transport oxygen, nutrients, cell wastes, hormones, and many other substances to and from all cells in the body. The trillions of cells in the human body take up nutrients and excrete wastes every minute of every day. Although the pace of this exchange may increase with activity or slow with rest, it happens continuously. If it stops, so does life. Of the two systems, the cardiovascular system is the primary transport operator; the lymphatic system aids it in its function.\n\n\nDesign: Parts of the Cardiovascular System\n\nCardiovascular comes from the Greek word cardia, meaning "heart," and the Latin vasculum, meaning "small vessel." The basic components of the cardiovascular system are the heart, the blood vessels, and the blood. The system can be compared to a large muscular pump (the heart) that sends a fluid (blood) through a series of large and small tubes (blood vessels). As blood circulates through the increasingly intricate system of vessels, it picks up oxygen from the lungs, nutrients from the small intestine, and .....
294509
The entire LV wall function is not contracting / relaxing fully to its limit.\n\nWALL MOTION ABNORMALITIES\nNormally the contraction of the heart has a wringing motion, due to the arrangement of cardiac muscle fibers. For global evaluation, 2-D each is a useful tool. The SAX planes show all of the walls, except the apex. The best blood supply is at the base of the heart. \n\n\nHYPERDYNAMIC \ncompensatory decrease in systolic wall thickening \n\n\nHYPOKINETIC \nslow moving wall shows decrease in fractional shortening \n\n\nAKINETIC \nwall may thin in systole \n\n\nPARADOXIC \nwall motion is compensatory and moves opposite of normal \n\n\nDYSKINETIC \nwall motion compensates for abnormal adjacent walls
93541
wouldn't teh functions of the systems be the same for every organisms.  for example the respiratory system is for breathing in both cows and humans and probably for the toad as well.  the circulatory system is for circulating blood in every organsim.  the excretory system extrects toxins and metabolic wastes and the nervous system allows for cordiation of muscles and autonomic behaviors as well as cognitive thinking.  \n\nhowever the real functions of all these organs is SURVIVAL.  SURVIVAL is the driving force of life and you are kidding yourself if you think otherwise.
235068
The first is surface area. The mammalian lung has a huge number pf alveoli compared to lung structures of reptiles and amphibians. The greater the surface area available for gas exchange, the more efficient will be the gas exhange.\n\nThe second requirement for gas exchange is assisted by the mamallian heart of four chambers as opposed to reptilian and many other hearts. There is an enormous amount of the circulatory system that passes directly to the pulmonary arteries and veins. Thus there is sufficient blood circulation in the lung area to remove oxygen and transfer it to the rest of the body.\n\nComparative biology will show far fewer alveoli in non-mammalian hearts (with the exception of birds). The other thing notable from compataive anatomy is that the mamallian heart (and that of birds) is a four chambered pump that does not mix unoxygenated blood with blood that has been oxygentated.\n\nSurface area and increased opportunities for deoxygenated hemoglobin to accept oxygen due to more efficient heart action.
1175070
60 to 100 heartbeats a minute are considered normal I am listing an informative web link which will provide the information you seek in detail - http://www.temple.edu/heart/html/tachycardia.html
235093
If the average is 80 beats per minute, then the heart muscles contract around 115,000 times a day. \n\nNo it does not depend on your blood pressure, it depends on your pulse.
970619
This is not a matter of size or morphology, rather athletes have improved stroke volumes, and thus improved cardiac outputs compared to normal individuals.  This also means that they can sustain normal homoeostasis and metabolic activity during rest at lower heart rates than normal individuals.  Normal adults have resting heart rates over 70 beats/min, athletes normally below 70 and closer to 60 even.
270151
normally kidney function
64374
The above answer is correct, but the cardiovascular system is not just the heart. That's the "cardio", but the "vascular" part is all of the arteries, veins, and capillaries that distribute the blood throughout the body.\nThe respiratory system does indeed oxygenate the blood, but is also responsible for eliminating carbon dioxide from the body as well. As the body uses oxygen for metabolism, it produces carbon dioxide. If this is not eliminated from the body fairly quickly, it builds up, and without going into alot of detail, you die.
865640
All gases are taken into the lungs.
574341
(1)Heart is  the hollow muscular organ that receives blood from the veins and propels it into and through the arteries.\n(2)It helps to bring blood from the body returns to the right atrium through two large veins, the superior and inferior venae cavae; in addition the blood that has supplied the heart muscle is drained directly into the right atrium through the coronary sinus.
1098733
The average human heart beats approximately two billion times in a lifetime.
227115
air is moved into the lungs
634762
Airway, Breathing, Circulation
413250
Skin, lungs, and liver.