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Circulatory System

Circulatory System is the category for questions about the human circulatory system, including questions about the human heart, arteries, and veins.

2,116 Questions

What is ischemetic heart disease?

there really isn't any such thing as an ischaemic artery (it can happen, but I've never heard of it!). Rather ischemia (or ischaemia for our English and Australian friends) is a lack of sufficient oxygen delivery to a tissue. Oxygen is carried by HEMoglobin in the blood hence the iscHEMia. Ischemia is usually caused by an interruption to the blood flow to a particular area. One way to interrupt blood flow is to block an artery. (which usually deliver oxygenated blood to tissues) A blockage may be the result of a plaque (a fatty aggregation on the inside walls of an artery), or a thombus (clot), or an embolus of some sort. People often hear that they may have ischemic heart disease. This is a condition of severely narrowed arteries (often greater than 70% of their cross sectional area may be blocked) which leads to decreased blood (and hence oxygen) supply to the muscle of the heart. This can cause Angina. If the coronary arteries completely block off, then a heart attack will ensue, where cardiac muscle dies because of lack of oxygen. Treatment ranges from medications to: lower cholesterol, decrease oxygen consumption of the heart, vasodilators to increase delivery of blood through that artery; to surgery to operate and either re-open the blocked vessel (balloon angioplasty and stenting ) or procedures to essentially replace the diseased vessels in By-pass surgery (CABG- coronary artery bypass grafting). Hopefully that helps!! Aj :)

What are the similarities between the circulatory system and a circuit?

The pulmonary circulation is the portion of the cardiovascular system which carries oxygen-depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart while for the systemic circulation, it is the portion of the cardiovascular system which carries oxygenated blood away from the heart, to the body, and returns deoxygenated blood back to the heart... :D

Which chambers in the heart are receiving?

The receiving chambers are the atria (singular atrium). The right atrium receives deoxygenated blood from the body, and the left atrium receives oxygenated blood from the lungs.

The right atria receives blood from the veins (systemic).

The left atria receives blood from the lungs (pulmonary).

Is the lungs and the heart are located superior to the abdominal organs?

Yes, the heart and lungs are superior to the organs of the abdomen in that they are located above those organs.

What is the scientific name for artery in the circulatory system?

The heart and blood vessels are part of the cardiovascular system. Cardio- or cardiac refer to the heart. Vascular refers to the blood vessels. Circulation or circulatory refers to the movement of blood through the vascular system.

Why is the human circulation called a double circulation?

With a double circulatory system, the heart can increase the pressure of the blood after the blood has picked up oxygen from the lungs. This means it can transport oxygen to the body tissues much quicker.

Trace blood flow from heart to right arm?

Left Ventricle to Left side of brain via common carotid Left Ventricle Aortic (semi-lunar) valve Ascending aorta Aortic arch Left common carotid artery Left carotid sinus Left internal carotid artery Left anterior cerebral artery

Area where the great vessels leave the heart?

Four main blood vessels enter/exit the heart: two veins and two arteries. Oxygenated blood enters the left ventricle through the pulmonary vein. This same blood is then pumped out of the left atrium via the aorta. Meanwhile, de-oxygenated blood enters the heart in the vena cava; before leaving through the pulmonary artery.

What are the correct layers of the heart from deepest to most superficial?

The membranes from superficial to deep are:

A sac-like structure called pericardium. It is comprised of two parts - the outer fibrous pericardium and an inner double-layered membrane itself made up of parietal and visceral pericardium.

What are the mitral and tricuspid valves?

The heart has four chambers. Deoxygenated blood enters the right atrium from around the body via the superior and inferior vena cavae, and travels down through the tricuspid valve into the right ventricle.

The right ventricle pumps the deoxygenated blood to the lungs to be oxygenated, via the pulmonary artery (the only artery that carries deoxygenated blood). It returns via the pulmonary vein (the only vein that carries oxygenated blood) into the left atrium.

Oxygenated blood then enters the left ventricle (the heart's principle pumping chamber, and has particularly thick muscular walls) from the left atrium through the mitral valve. The left ventricle pumps the oxygenated blood at sufficient pressure to travel round the entire body, through the aortic valve and into the aorta.

- Qu.mstr.

Is blood red inside the body?

No your blood is not red until it hits oxygen, that is why your veins are not red.

The above answer is incorrect. All blood is red but blood with oxygen is brighter red and blood lower in oxygen is darker red. All veins do not carry blood low in oxygen. Most do but not ones coming to the heart from the lungs.

What does the circulatory system look like?

An abnormal heart murmur may have an enlarged heart compared to one without

Which blood vessel carry blood from all over the body back to the heart?

Arteries, the largest of which is the Aorta. Arteries then split down into smaller blood vessels called arterioles and then smaller still into one-cell-thick vessels known as capillaries. These capillaries are where diffusion, movement of Oxygen from the blood vessels into the nearby tissue cells, occurs.

How do you keep circulatory system healthy?

It is important to keep your circulatory system working at its best. Your heart pumps blood to every part of your body. It travels through thousands of miles of blood vessels! Blood carries oxygen from your lungs. If there is a problem with your blood, your heart, or your blood vessels, your whole body can suffer. If you don't get enough oxygen to your brain, you might not be able to think clearly. If your stomach isn't getting enough oxygen, it might be hard for you to digest your food. If there is a problem with one of your blood vessels, blood could stop flowing to a part of your body. Without it, those cells could die.

2 What can you do to keep your circulatory system healthy? You can make sure that you are getting plenty of exercise. When you exercise, you heart beats faster. This makes your heart stronger. Your heart is a muscle. Just like the muscles in your arms and legs, your heart gets bigger and stronger the more that you use it. Exercise also helps to keep your blood vessels working properly. Go outside and play! Ride your bicycle. Go for a swim. Your body will thank you!

3 Eat healthy foods. They will keep your circulatory system healthy. Iron-rich foods like beans, whole-grain breads and cereals, red meat, and green vegetables are good for your blood. Try to avoid fatty foods, especially fried foods and foods that contain a type of fat called trans fat. Eating too much fat can cause fat

What does the Coronary Circulatory System do?

The cardiovascular system consists of the heart, blood vessels and blood. Its 3 main functions include:

1. Transport of oxygen and nutrients toward and wastes away from cells of our body

2. Immunological protection of our body from foreign organisms and substances

3. Maintenance of homeostasis including the regulation of body temperature, blood pressure, electrolytes and water balance.

What are the common ailments of the circulatory system and their symptoms?

The most common ailment of the circulatory system is atherosclerosis, or hardening of the arteries. This condition can lead to heart attack or stroke. Sometimes there are no symptoms, but when the problem is severe it typically causes symptoms such as chest pain, shortness of breath, weakness, nausea, and sweating. The second most common circulatory disease is hypertension, or high blood pressure. High blood pressure is very often without symptoms and has been called 'the silent killer', so it is important to get regular blood pressure checks.

Where is the location of the circulatory organs?

The location of the organs are mainly in the ribs.the lungs are on the side and the heart is in the middle

What was the importance of the discovery of the circulatory system to the ancient Chinese?

The ancient Chinese discovery of the circulatory system contributed to their mastery of traditional medicine. These techniques are still used successfully by modern people of all nationalities.

How can you look after your circulatory system?

how to prevent circulatory ailments some ways of how to prevent this ailment is not to eat too much fatty foods and to always follow what the doctor is saying so that the ailment is to be cured....another is to qalways check the blood pressure because this also helps in knowing if there is an ailment of a person in the circulatory system

How many percent of people who died without Christ in there heart?

Since Jesus said, "Many there be which go in there" we have to assume there will be a lot. To narrow it down further, Jesus said, "Many will say to me in that day, Lord, Lord, have we not done many marvelous things in your name and he will say, Depart from me for I never knew you." Then, he said about heaven, "Few there be which go in there." So the obvious conclusion is, a majority of people will die without Christ and be lost forever in hell. Based on this, I would have to conclude that perhaps 75% of the people will die without Christ.

When someone died why would there fingernails be blue-gray in color?

When a person dies, circulation stops within a couple minutes after the last heart beat. Blood still in the vessels does not flow. Without circulation, the face becomes a pale blue-gray and even finger nails can show a blue-gray cast.

How does capillaries help them do their job?

Capillaries work in the same way as vessels and veins but they also help by receiving food molecules from the small intestine. And also if a vessel or vein get damaged, they can divert blood away from the injury to reduce blood loss.

What is the main function of the circulatury system?

The role of the circulatory system is to transport oxygen and other necessary nutrients all throughout the body. The main part of the circulatory system is the heart. The heart is the organ responsible for pumping blood throughout the body. This system has three types of blood vessels: The largest are arteries which go away from the heart. Next are veins which lead to the heart and are the second largest vessel. The smallest are capillaries which transport blood through tight spaces. Sometimes, red blood cells need to pass one by one though capillaries!Wow!

The role of the circulatory system is to circulate the blood to the whole body .... basically responsible for the blood flow in the body, oxygen and gases from and to the cells also nutrients and hormones are involved

Does the circulatory system make hormones?

The circulatory system does not produce adrenaline. That is the job of the endocrine system.