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Humans have a two lungs-one heart system because that is essential to survive and thrive on earth. This is the product of millions of years of evolution and humans have been molded specifically for life on earth.

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11y ago

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How many lungs are there?

You will always heard that humans have only two lungs . NOT RIGHT ! Humans actually have 5 lungs together . 3 in the right side and 2 in the left side . Why two in the left side ? Because of the heart occupying a lot of space there is not enough space for the other lung .


How many lungs do cows have?

Cows have two lungs, just as humans do.


Why do humans have 1 heart but 2 lungs?

Because lungs take in air and air is spread out so it needs more surface area, whereas the heart takes in and pumps blood, which is liquid and needs less surface area. P.S: the heart has two parts, two ventricles and two atria. Don't depend on my ans btw.


The Heart is located in which two cavities?

The heart is located in the thoracic cavity, which also includes the lungs. In addition, the heart is in the mediastinum, which is the area between the two lungs.


Do humans have 4 lungs?

yer it is, my mate has it


Does blood flow one way in the body?

Yes. It makes two circuits (circles), from the heart to the lungs, back to the heart, to the body, and back to the heart again.


What are the two main areas that the heart pumps blood to?

The left side of the heart pumps blood to the head and body. The right side of the heart pumps blood to the lungs


What is the difference between the perch and human circulatory system?

The perch has a single circulatory system that consists of a two-chambered heart and blood vessels, while humans have a double circulatory system with a four-chambered heart. In the perch, blood flows from the heart to the gills for oxygenation and then to the body tissues, while in humans, blood circulates from the heart to the lungs for oxygenation and then back to the heart before being pumped to the rest of the body.


Why is the mammalian heart- two hearts that beat as one?

Because one part beats to pump blood to the lungs and the other beats to pump blood to the rest of your body. They are really one heart with two sections.


Two examples of involuntary muscle cells?

Heart and eye HEART AND LUNGS


What are the two main organs in your chest?

The lungs and the heart.


Which two organs does the ribs protects?

heart and lungs