what happens to the Circulatory and Respiratory Systems when an animal is in hiberation?
608145
They slow down dramatically. \n\nThe animal's metabolism slows so everything else in it's body slows. \n\n\nFrom source:\n  When an animal begins to hibernate, its body temperature drops very low so that it almost matches the temperature outside.   Your temperature is normally about 98.6 degrees Fahrenheit.  If you were a hibernator and it was 30 degrees outside, your body temperature would drop from 98.6 down to about 30-40 degrees. THAT’S cold! \n    The animal’s heartbeat and breathing slow down, too.  This is when that stored fat that the animal packed on in the fall comes in handy.  This stored fat lasts longer because their bodies are slowed down so much that they don’t need much energy.  This is how the animal makes it through the whole winter on the fat it has stored in its body.  This is why it's important for animals to get enough food stored in the fall.  If there is a shortage of food at that time, the animal might not live until spring when it can find its food again.
835848
Wow, so there are a few answers to this:\n\n-The apnuestic center in the brain controls repirations.\n\n-The diaphragm is the muscle that helps move the lungs up and down. \n\n-The sudden drop in negative pressure in our chest cavity that signals our lungs to take a breath in once we have enhaled the last breath out.
437859
they transfer oxygen into the blood stream and co2 out\n\nmore here:\n\nhttp://en.wikipedia.org/wiki/Lungs
1155102
As we come to the vertebrates, we begin to find real efficiencies with the closed system. Fish possess one of the simplest types of true heart. A fish's heart is a two-chambered organ composed of one atrium and one ventricle. The heart has muscular walls and a valve between its chambers. Blood is pumped from the heart to the gills, where it receives oxygen and gets rid of carbon dioxide. Blood then moves on to the organs of the body, where nutrients, gases, and wastes are exchanged. However, there is no division of the circulation between the respiratory organs and the rest of the body. That is, the blood travels in a circuit which takes blood from heart to gills to organs and back to the heart to start its circuitous journey again.\n\nFrogs have a three-chambered heart, consisting of two atria and a single ventricle. Blood leaving the ventricle passes into a forked aorta, where the blood has an equal opportunity to travel through a circuit of vessels leading to the lungs or a circuit leading to the other organs. Blood returning to the heart from the lungs passes into one atrium, while blood returning from the rest of the body passes into the other. Both atria empty into the single ventricle. While this makes sure that some blood always passes to the lungs and then back to the heart, the mixing of oxygenated and deoxygenated blood in the single ventricle means the organs are not getting blood saturated with oxygen. Still, for a cold-blooded creature like the frog, the system works well. Humans and all other mammals, as well as birds, have a four-chambered heart with two atria and two ventricles. Deoxygenated and oxygenated blood are not mixed. The four chambers ensure efficient and rapid movement of highly oxygenated blood to the organs of the body. This has helped in thermal regulation and in rapid, sustained muscle movements.
311991
First let me tell you how Hibernation works....\n\nDuring hiberation we take snapshot of the RAM of our computer and the various registers etc. residing in all the processors of a computer.\n\nWe save it at a location in the hard disk.\n\nThen the computer is shut down.\n\nWhen we start the computer the stored contents are restored back to its previous locations.\n\nthus the computer restores to the exact same position as it was before hibernation.\n\nNow... shut down of a computer means that the ram and registers are all emptied and when we start it they are freshly loaded.\n\nWhich is better ????\n\nIts better top shut down your computer atleast once in a week. as long as this frequency is maintained...\nHibernation should not cause any harm to your computer.\n\nNow hibernation will not cause harm to the computer if used for a long time repeatedly without shuting down.\n\nall that might happen is that your system would go slow, until you Restart it.\n\nThis is because:\n\nX hours of work + Y Hours Hibernation + Z hours of work \n=\n(X+Z) hours of messing of the memory\n\nBut :\n\nX hours of work + Y Hours Shutdown + Z hours of work \n=\n(Z) hours of messing of the memory
455801
Frogs have a three-chambered heart, consisting of two atria and a single ventricle. Blood leaving the ventricle passes into a forked aorta, where the blood has an equal opportunity to travel through a circuit of vessels leading to the lungs or a circuit leading to the other organs. Blood returning to the heart from the lungs passes into one atrium, while blood returning from the rest of the body passes into the other. Both atria empty into the single ventricle. While this makes sure that some blood always passes to the lungs and then back to the heart, the mixing of oxygenated and deoxygenated blood in the single ventricle means the organs are not getting blood saturated with oxygen. Still, for a cold-blooded creature like the frog, the system works well.
789521
The blood starts flowing quicker and heats up the nasal cavity\nb
946598
The blood woudn't be circulating in the body anymore. The cell wouldn't get their oxygen, and they would die.  So would you.
608893
In some muscular organs yes. For example, I remember that once I tied a cat's legs together (don't blame me! I was only 5!) I wanted to untie him soon but mummy called me and I forget it until I heard his meow (it took about half an hour). I rapidly untied him but for 3 minutes or more he was not able to walk OK and walked like drunk people!\n\nBut, many mammals have organs which could be still for a long time without getting asleep. In fact, the mechanism of blood circulation in those part is so that the motionlessness of that organ does not affect it. Maybe they have special one-way ports in their veins which may prevent blood blockage. Or have some bypass paths which guarantees the full coverage of blood transfer even if a local blockage occurs. In other types of animals (except than birds), I don't think that such phenomenon could be seen because of the nature of their blood circulation system.
1109512
The Circulation of Blood\n\nThe human circulatory system is really a two-part system whose purpose is to bring oxygen-bearing blood to all the tissues of the body. When the heart contracts it pushes the blood out into two major loops or cycles. In the systemic loop, the blood circulates into the body’s systems, bringing oxygen to all its organs, structures and tissues and collecting carbon dioxide waste. In the pulmonary loop, the blood circulates to and from the lungs, to release the carbon dioxide and pick up new oxygen. The systemic cycle is controlled by the left side of the heart, the pulmonary cycle by the right side of the heart. Let’s look at what happens during each cycle:\n\nThe systemic loop begins when the oxygen-rich blood coming from the lungs enters the upper left chamber of the heart, the left atrium. As the chamber fills, it presses open the mitral valve and the blood flows down into the left ventricle. When the ventricles contract during a heartbeat, the blood on the left side is forced into the aorta. This largest artery of the body is an inch wide. The blood leaving the aorta brings oxygen to all the body’s cells through the network of ever smaller arteries and capillaries. The used blood from the body returns to the heart through the network of veins. All of the blood from the body is eventually collected into the two largest veins: the superior vena cava, which receives blood from the upper body, and the inferior vena cava, which receives blood from the lower body region. Both venae cavae empty the blood into the right atrium of the heart.\n\nFrom here the blood begins its journey through the pulmonary cycle. From the right atrium the blood descends into the right ventricle through the tricuspid valve. When the ventricle contracts, the blood is pushed into the pulmonary artery that branches into two main parts: one going to the left lung, one to the right lung. The fresh, oxygen-rich blood returns to the left atrium of the heart through the pulmonary veins.\n\nAlthough the circulatory system is made up of two cycles, both happen at the same time. The contraction of the heart muscle starts in the two atria, which push the blood into the ventricles. Then the walls of the ventricles squeeze together and force the blood out into the arteries: the aorta to the body and the pulmonary artery to the lungs. Afterwards, the heart muscle relaxes, allowing blood to flow in from the veins and fill the atria again. In healthy people the normal (resting) heart rate is about 72 beats per minute, but it can go much higher during strenuous exercise. Scientists have estimated that it takes about 30 seconds for a given portion of the blood to complete the entire cycle: from lungs to heart to body, back to the heart and out to the lungs.\n\n^_^
181593
i don't think i quite know what ur asking, but as the air enters ur body, it is humidified, and warmed and passes thru ur pharynx, trachea and bronchi before it reaches ur lungs...  i hope that answers ur question
1008290
the ribs and the ribcage protect th heart and other organs.  the daiphram is the big muscle that controlls your breathing and expanding of your lungs
16005
The body's circulation has two parts, with the heart acting as a double pump. Blood from the right side pump is dark red (bluish) and low in oxygen. It travels along pulmonary arteries to the lungs where it receives fresh supplies of oxygen and becomes bright red. It flows along pulmonary veins back to the heart's left side pump.\n\n \n\n \n\n\nBlood leaves the left side of the heart and travels through arteries which gradually divide into capillaries. In the capillaries, food and oxygen are released to the body cells, and carbon dioxide and other waste products are returned to the bloodstream.The blood then travels in veins back to the right side of the heart, and the whole process begins again.
894833
Normally it would lead to respiratory alkalosis,\nbut remember blood gases are tricky  if the Base Excess is off or the HCO3 is off then the metabolic side may outweigh anything the respiratory system can do
1150092
When you hyperventilate, you breathe out excess carbon dioxide.\n\nWhen you breath out excess carbon dioxide, the pH of your blood gets affected (it becomes more basic).\n\nBy breathing into a paper bag, you breath the lost carbon dioxide back into your system, thus preventing a severe disruption in your blood's pH.\n\n-random physician
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.
646881
cardiovascular system