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Heart

The heart is a major organ of the body that is found in the circulatory system. It pumps blood throughout the blood vessels. Questions related to the heart should be put here.

8,781 Questions

Why does your heart stop when your scared?

Your heart will feel like it has stopped because when something scares you, you will think about that for that second or two and your brain will have forgotten that it needs to send messages down to your heart to make it pump blood into your system. i think.....

Is the heart only to pump and receive blood?

No it's for recieving messages from alien planets and on common occasions it is used as a means of proccessing emotion and decisions.

What are two of the biggest problems you've encountered at your job and how did you overcome them?

This is a type of question that you may be presented with at a job interview.

It is intended to get you to talk about yourself in an informal way and to help the interviewer to make an evaluation.

As you are the only one that can answer such questions you should think carefully about them beforehand. This is the part of the interview where you can sell yourself.

Do not just repeat the same lines you have read in a book or online, the interviewer will know all those answers.

Think positive and be original

Where can you send donations to the American Heart and Lung Association?

You can go to www.lungusa.org or www.americanheart.org and click on donate at the top of the page.

How does Right Atrium work?

The right atrium receives blood returning to the heart from the rest of the body. This blood is now low in oxygen and high in carbon dioxide. So when the atrium contracts, it pushes this un-oxygenated blood out and into the right ventricle, which will then, sent the blood to the lungs to become oxygenated again for the process to start all over. This all happens in one heartbeat. The right atrium was also named right auriculum in older texts.

Why does the blood that flows to the fish's heart lack oxygen?

It's because a process called gas exchange has taken place in the fish's body. Oxygenated blood is pumped throughout the body, and the cells in the body take out oxygen and put in carbon dioxide (gas exchange). The blood returning to the heart of the fish is deoxygenated, and it will have to eventually go to the gills. There, the carbon dioxide (CO2) will get dumped into the water and oxygen (O2) will be picked up from the water at the same time in another gas exchange.

Why does the heart pump blood to the lungs?

heart pumps blood to the lungs for oxygenation.

The rhythmic contractions of the esophagus are called what?

Peristalsis is the term for the rhythmic contractions of the esophagus. These wavelike contractions move food toward the stomach.

What is the function of the blood vessels on the outer wall of the heart?

Nutrients and oxygen have to get to the outside of the heart. So the blood vessels on the outside have that job. The nutrients and oxygen can't get to the cardiac muscle from inside the heart. Blood vessels that lead from the heart that are high in oxygen and nutrients have their first branch off the aorta that goes to these blood vessels. That's how important these vessels are to the heart and how it functions.

Why it is important for the left side and the right side of heart is separated?

because one side of your pumps Co2 and the other pumps O2 , and the two types of blood go to different parts of the body .

What measures the action of the heart?

Your pulse measures the action of the heart.

How is the heart sectioned?

into 4, right ventricle, left ventricle, right atrium,left atrium

What is the major function of a valve in the heart?

Valves control the flow of blood. Without them blood could flow backwards.

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Yes, true. Valve would maintain one way traffic for blood right from the heart and to outside parts of the body and form outside to the heart.

Tubes that carry blood around?

The tubes that carry blood are known as the blood vessels. These include the capillaries, arteries, and veins.

How much blood does your left ventricle push out?

The blood leaves the heart from the left ventricle, which leads into the aorta. The aorta pumps out about 70 mL per minute, and it usually beats 70 beats per minute- that's basically 5 liters.

If i can stop one heart from breaking analysis?

Well, I think that what the author is trying to say is that that if she can bring a smile on someone's face then she has done something worthwhile in her life and her life was not wasted. If she can really help someone then she has completed her mission.The basic idea of this poem lies within the deep meaning of these simple words which tells us that we should not be inhumane and we should help others when they need us. You can exaggerate this bit.

Heart excitation originates in the?

Heart excitation originates in the sino-atrial node.