Science trivia of circulatory system by answer did you know?

Answer 1

The circulatory involves 3 components which are the heart, blood vessels and blood. The circulatory system starts when our heart pumps deoxygnated blood to the lungs, then to our pulmonary vein which will go to our heart and pump out the oxygenated blood to the aorta, then which will go to the body cells, which will go to the vena cava , which then goes to the heart and the heart pumps deoxygenated, pulmonary artery to our lungs and start the process again.Did you give your friends valentines andlittle heart-shaped candies on Valentine'sDay? Do you ever cross your heart whenmaking a promise that you really, really mean? Or turn on theradio to hear a guy singing about his broken heart?

We see and hear about hearts everywhere. A long time ago,people even thought that their emotions came from their hearts,maybe because the heart beats faster when a person is scaredor excited. Now we know that emotions come from the brain, andin this case, the brain tells the heart to speed up. So what's theheart up to, then? How does it keep busy? What does it look like?Let's find out.

by Tasnim

Answer 2

A women's heart beat is faster than a mans

It takes 20 seconds for a blood cell to go throughout the whole body

The heart beats about 3 billion times a lifetime

The aorta is the largest artery in the body

Answer 3

The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body. This process is called circulation. The main parts of the system are the heart, arteries, capillaries and veins.

As blood begins to circulate, it leaves the heart from the left ventricle and goes into the aorta. The aorta is the largest artery in the body. The blood leaving the aorta is full of oxygen. This is important for the cells in the brain and the body to do their work. The oxygen rich blood travels throughout the body in its system of arteries into the smallest arterioles.

On its way back to the heart, the blood travels through a system of veins. As it reaches the lungs, the carbon dioxide (a waste product) is removed from the blood and replace with fresh oxygen that we have inhaled through the lungs.

On average, your body has about 5 liters of blood continually traveling through it by way of the circulatory system. The heart, the lungs, and the blood vessels work together to form the circle part of the circulatory system. The pumping of the heart forces the blood on its journey.

Answer 4

1. It takes about 20 seconds for a red blood cell to circulate throughout the whole body.

2. The heart pumps about 1 1/3 gallons of blood each minute.

Answer 5

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