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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
Can anyone have their heart on the right side of the body?
This condition is called dextrocardia, in it's simplest (and rarest) form all of the organs in the chest and abdomen are functionaly normal but they are a mirror image of the normal arrangement. So the heart is on the right the liver is on the left and the spleen is on the right.
More commonly the condition is associated with heart defects like pulmonary stenosis ventricular septal defect, transposition of the great vessels which are serious but not necessarily unsurvivable. Many of the abdominal organs may be in the wrong position, not work properly or the spleen may be completely absent (this carries the highest death rate as it causes infection).
What muscle such as the heart muscle does there job without thinking about it?
lungs, for one.
heart, lungs, and tongue.
What pumps blood to the left ventricle?
The left ventricle pumps blood around the body whereas the right ventricle only sends it to the lungs in pulmonary circulation.
What is the purpose of heart valaves?
The reason we have valves in our heart is to direct the flow of blood in one direction. This ensures that it is able to circulate through the body.
Which layer of the heart wall contracts and is composed primarily of cardiac muscle tissue?
Yes. For future refference myo as a prefix generally means it has something to do with muscle contraction. Cardi odviously means is has something to do with the heart.
CO = SV x HR
3500 = SV x 70
3500/70 = SV
SV = 50ml
What blood vessel leaves the heart to pick up oxygen?
ARTERIES ALWAYS take blood AWAY from the heart.
The veins return blood from the body back to the heart, then out of the heart to the lungs where it is oxygenated, then back to the heart and carried back out into the body by arteries. The blood in the veins is blue but is seen through you skin as a dark green.
What is the medical term meaning insufficient blood flow to meet the needs of the heart muscle?
Myocardial infarction [MI] (myo = muscle + cardi = heart + al = pertaining to ++ in = within + farc = stuff + on = noun form) is also known as a heart attack. What sets the MI apart from a cardiac obstruction is that because of the hypoxia (low oxygen) downstream from the blockage, the tissue becomes necrotic (dies).
The heart rate measures number of heart what?
If you're asking what that number is called, it's "Heart rate" or sometimes "pulse rate" or "pulse" (technically these are different, though in practice they're usually the same number).
If you're asking what a device to measure that would be, the general term is "heart rate monitor."
Which medicine can cause heart attack and is not discovered in autopsy?
INSULIN is the only medicine that does the trick....
Can you name some of the heart diseases?
MI - Myocardial Infraction
CHF - Cardiac heart failure
ASD - Atrial septal Defect
VSD - Ventral septal defect
Where does the heart pump blood mostly?
Well dear, don't you know? It circulates throughout your entire body! We need that blood to survive or live! Ok, again, this may not be the right answer, people can improve it. Thank you for using my answer
Is a myocardial infarction a stroke?
A myocardial infarction is a heart attack. It is caused when the cells of the muscle of the heart do not get enough oxygen and glucose, resulting in anaerobic metabolism and buildup of products of that metabolism, resulting in cellular acidosis, shutdown of cellular metabolism, and finally cell death and necrosis.
In the overwhelming number of casea, this process results from the blockage of a coronary artery by a thrombus formed when a cholesterol plaque ruptures, causing a clot to form. It can be caused by several other things, however. Severe dehydration, severe hypotension, partial blockage of an artery by a large plaque that has not ruptured and other low flow states can result in not enough oxygen and glucose getting to the cells. Also, anything that increases the metabolic demands on the heart muscle can cause similar effects - sepsis with shock, toxins, drugs, and poisonings.
What prevents the back flow of blood in the heart?
bicuspid (between left ventricle and atrium) and tricuspid (between right ventricle and atrium) are the 2 valves that prevent the backward flow of blood from the ventricles into the atria. There are two semi-lunar valves also prevent the backward flow of blood from arota to the left ventricle (Aortic valve) and from the Pulmonary Artery to the right ventricle (the Pulmonary valve).
The valves at the top of the heart are the semi lunar vavles. These stop back flow from the pulmonary artire and pulmonary vein (to and from the lungs) The valves that stop back flow in the heart from the atruims to the ventricls are the tricuspid valve (on the right) and the bicuspid valve (on the left) (be carful here, because while the tricuspid valve is a universal term, bicuspid is not used in the USA, it is called something else whic escapes me at the moment) the valve that stops blood coming back into the heart from the aorta (main artery going to body) is the aortic valve and the the valve that stops back flow from the veina cava (main vien going back into the heart from the body) is just veina cava valve.
The circuit that connects the heart and lungs?
Blood vessels. Arteries and arterioles direct oxygenated blood to the kidneys as well as your other major organs and musculature. Then veins and venuoles push deoxygenated blood back to your heart. Oxygenated Blood leaves your Left ventricle of your heart and enters the aorta which branches into three segments, I believe it is the subcostal descending aorta which feeds the kidnesys.
What are the causes of an enlarged right side of the heart?
You will have poor blood circulation throughout your body, primarily your legs. The heart acts as a forward pump. The deoxygenated blood comes in through the right side, so the enlarged right side will create less efficiency. Because of the lack of blood flow to the legs, you will probably have claudication when exercising or simply walking.
How is blood transported from the heart and to it?
The coronary arteries transport blood from the aorta to the heart muscles. They are called this because they look like an upside down crown.
What is the main pace maker of the heart?
The primary pacemaker of a normal healthy heart is the sinus node (or SA node). It is located in the right atria of the heart.
Does your heart rate and breathing rate go up or down at the end of the day?
it varies according to the kind of work you are doing.
What monosyllables are used to describe heart sounds?
Heart sounds are noises generated by the beating heart from the flow of blood through it. Thump, boom can be used to describe it. Lub and Dub are also used. There are other sound words that suggest problems with the hearbeat as well.
How does blood flow through your heart chambers?
All blood enters the right side of the heart through two veins: The superior vena cava (SVC) and the inferior vena cava (IVC) (see figure 3). The SVC collects blood from the upper half of the body. The IVC collects blood from the lower half of the body. Blood leaves the SVC and the IVC and enters the right atrium (RA) (3). When the RA contracts, the blood goes through the tricuspid valve (4) and into the right ventricle (RV) (5). When the RV contracts, blood is pumped through the pulmonary valve (6), into the pulmonary artery (PA) (7) and into the lungs where it picks up oxygen.
Figure 3
Heartbeat, It's a Love Beat The average heartbeat is 72 times per minute. In the course of one day it beats over 100,000 times. In one year the heart beats almost 38 million times, and by the time you are 70 years old, on average, it's made it to 2.5 billion beats.
 ÂWhy does it happen this way? Because blood returning from the body is relatively poor in oxygen. It needs to be full of oxygen before being returned to the body. So the right side of the heart pumps blood to the lungs first to pick up oxygen before going to the left side of the heart where it is returned to the body full of oxygen. Blood now returns to the heart from the lungs by way of the pulmonary veins (8) and goes into the left atrium(LA) (9). When the LA contracts, blood travels through the mitral valve (10) and into the left ventricle (LV) (11). The LV is a very important chamber that pumps blood through the aortic valve (12) and into the aorta (13). The aorta is the main artery of the body. It receives all the blood that the heart has pumped out and distributes it to the rest of the body. The LV has a thicker muscle than any other heart chamber because it must pump blood to the rest of the body against much higher pressure in the general circulation (blood pressure). Here is a recap of what we just discussed. Blood from the body flows: * to the superior and inferior vena cava, * then to the right atrium * through the tricuspid valve * to the right ventricle * through the pulmonic valve * to the pulmonary artery * to the lungs
Blood pressure during heart contraction?
Yes. The top number which is called Systolic is the pressure on the arteries when the heart is contracting. The bottom number which is called Diastolic, is the pressure on the arteries when the heart is relaxed. If you were to feel your pulse, it has a rhythm. When you feel the heart is contracting. The heart is relaxing between the beats.
