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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
When working out what should your heart rate be?
That is something you would need to ask your doctor, or at least someone who knows alot about you physically, and has a background in medicine and health. This is something that varies from person to person. I believe somewhere between 120 and 160 is generally good, but I may be wrong. It also depends on the type of exercise you are doing.
How do people die from heart failure?
It is important to note that the course of the disease and the progression is different for everyone.
The heart is a muscular pump. In Heart Failure, this pump (over a number of years typically) has become damaged. The heart becomes ineffectual and flabby. But this "flabbiness" cannot be corrected through exercise, because of the heart damage to the muscle itself.
The "failure" can begin on the left or right side. As the heart must work harder, both sides and both upper and lower chambers can be affected. The lower chambers need to push out blood-- but cannot do it efficiently. Blood begins to back up, causing excess fluids to build up in the lungs. Heart-lung involvement is inevitable. A person with heart disease can begin to retain fluids because the heart cannot effectively pump the blood to the kidneys. Doctors can help with using diuretics, but care must be taken to not overwhelm the kidneys too.
It becomes a balance between relieving pressure on the heart muscle, decreasing fluid build up in the lungs, increasing safe transport of excess fluids to the kidneys, but without stressing any body systems. Typically, people can live a number of years on a combination of medications, O2, and inpatient hospitalizations as needed to deal with acute symptoms.
Death occurs typically as a combination of respiratory-cardiac failure, when the lungs become overwhelmed with fluids and the body is not well perfused with O2 because the heart muscle fails. The heart can go into several ineffectual heart beating-types or simply fail to contract at all. CPR might work but only postpones the inevitable outcome: death. CPR often fails because the heart is unable to beat in a coordinated effort as in a healthy heart; it contracts more like Jello, where the electrical impulses make the heart "jiggle" or "wiggle" all over, rather than contract forcefully and in a sustained effort of the upper/lower chambers.
*Daughter of a heart failure patient
What are the difficulties to overcome when doing a heart transplant?
there are a number of difficulties to overcome one is you have to find a heart to replace the other one with this can be a slight challenge the hearts you can use asre electric ones human ones pig ones dog ones or cats ones. That is probably the main difficultie to over come the rest of the procedure is pretty easy as i did one the other day seeing as im a docter n' all hope this has helped.
Of course you are a doctor. Make sure you know how to spell your title/occupation, *doctor not docter.
What is the difference between heart structure and parts of the heart?
the heart structure is the way that the heart is built and shaped but the parts of the heart is whats in the the heart and what the heart is made out of.
What is the two tasks the heart performs?
1.to supply oxygen to whole part of the body
2.to carry nutrition to whole part of the body
How risky are unusual heart rhythms?
Not all unusual heart rhythms (called arrhythmias ) are dangerous or fatal.
Valves separating atria and ventricles are?
The general term would be atrioventricular valves or AV valves. There are two of these valves: the one on the right side is known as the tricuspid valve and the one on the left is known as the mitral valve.
Circle your body, make you throw up and digest you properly.
What is a heart to heart conversation?
a heart to heart conversation is where people talk to each other very honestly and openly :) it basicly just means that you are going to tell each other the truth wether it helps or not and that it will private and normally confidental.. its difficult to explain but i hope it helped :) x
What is the structure of left atrium?
the left atrium is above the left ventricle. the blood which has been oxygenated from the lungs due to the gas exchange between the alveoli and capillaries comes here from the pulmonary artery this blood then gets sent to the left ventricle through the bicuspid valve this stops the backflow of blood but it allows the blood to go to the left ventricle but does not allow the blood to go back
Where does the heart pump blood low in oxygen and high in carbon dioxide?
The heart pumps blood low in oxygen and high in carbon dioxide to the lungs, where blood releases carbon dioxide and picks up oxygen.
What structure separates both sides of the heart?
"The right side of the heart is completely separate from the left side by a wall of tissue called septum. Each side has two compartments, or chambers and upper chamber and lower chamber." ~Human Biology and Health; Science Explorer; Chapter 3, Sec. 1
Is the heart superficial to the spleen?
Anatomically speaking the two are not related. While the former lies in the thorax, the latter is in the abdomen. But the heart can be considered superior to the liver, with diaphragm and other structures in between.
What structure sets the pace for heart contraction?
Cardiac muscles don't contract in unison, if you listen to your heart beat you should hear two distinctive thumps (1 for the atria, 1 for the ventricles). I believe the structure you're looking for is the Sinoatrial Node (SA node) which is a bundle of nerves in the upper part of the right atrium, also known as the 'pace maker'. The electrical impulse from the node triggers a sequence of electrical events (from the SA Node to the A(trio)V(entricular) node to the Purkinje fibers) which are the cause of the beating/contracting
Which side of the heart is the strongest?
the left hand side of the heart has to pump the oxygenated blood, which its just received from the lungs, round the whole body - meaning it has to pump it a greater distance then the right side. the right side of the heart send pumps deoxygenated blood to the lungs which is a short distance.
Can a bicuspid aortic valve cause a heart attack?
Yes, a bicuspid aortic valve can be repaired if it is diseased. The procedure usually involves a small incision and the valve will either be repaired, or more often, replaced with a synthetic valve.
Why is the left ventricle the most powerful of the heart?
The Left ventricle is delicious, so the myocardium is sweeten it.
Why are there four chambers in your heart?
It allows it to more easily regulate the volume and rate at which the rest of the body and lungs receive it. Not to mention, because of the four chambers there is always blood circulating, during the contraction of the ventricles and atria.
What are the four chambers of the heart i'n a diagram?
The 4 chambers in the eart are the left and right atria, and the left and right ventricle. Each chamber has one valve.
Approximately 252,000 times an hour at 70 beats per minute. 70 beats X 60 seconds = 4,200 4,200 X 60 minutes = 252,000
Is the mammalian heart a two sided muscular pump?
Yes- the mammalian heart is a big muscle that has a right and a left side, each with two small chambers: the ventricle and the atrium. Each chamber of the heart pumps at a slightly different time, but each atrioventricular pair pumps closer together than to the other two, leading to to the rhythmic two-pump sound you can hear through your chest.
Why heart called pumping station?
because when it stop pumping the bloods will not circulate,and when the bloods are not circulate your will be die.
