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4. Which types of onganism have more than the three chambers
in heart? why?
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Answers
Answer:
The heart is a muscular organ in most animals, which pumps blood through the ... Of these more than three quarters are a result of coronary artery disease and stroke. Risk factors include: ...
Explanation:
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Answer:
Mammals and birds have four-chambered hearts.
Birds and mammals, however, have a fully septated ventricle--a bona fide four-chambered heart. This configuration ensures the separation of low-pressure circulation to the lungs, and high-pressure pumping into the rest of the body.
As warm-blooded animals, we use a lot of energy and therefore need a great supply of oxygen for our activities. Thanks to our four-chambered heart, we are at an evolutionary advantage: we're able to roam, hunt and hide even in the cold of night, or the chill of winter.
But not all humans are so lucky to have an intact, four-chambered heart. At one or two percent, congenital heart disease is the most common birth defect. And a large portion of that is due to VSD, or ventricular septum defects. The condition is frequently correctable with surgery.
Explanation:
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