Heart

Plants do not have hearts. Only animals have hearts and most have four chambers and a few have three.

The heart makes soun by the beating heart and the resultant flow of blood through it.

Somewhere in the lost valley I think but I've been wondering around there for an hour and I still can't find it so your best bet would be the desert of tears

People who do a lot of exercise can have larger hearts because the heart muscle like any other muscle grows the more it is used. An enlarged heart can also be a sign that there is some other problem with the circulatory system, which means that the heart is having to work harder than normal to compensate, and the heart muscle will grow for the same reasons as when it works harder in exercise.

no not realy

72

A turtle has 2 atria, and one ventricle. However, the ventricle is partially divided by a discontinuous septum, which the turtle can open or close depending on whether it wants to keep oxygenated and deoxygenated blood separate, this is called adaptive shunting. Blood mixing can be employed in instances where the turtle wants oxygen supply to taper off instead of abruptly ending, like when it is diving.

the mitral valve

No

Unfortunately any (serious and checked) herbal remedy.

I recommend you see a doctor or cardiologist. There are any number of reasons this could be happening including, but not limited to, anxiety, too much caffeine, drugs, and heart disease. If this just started, you might look at what you have been doing differently recently. A search of the Internet found that you are not the only person who has experienced this.

Execising allows you to squeeze it more times within a certain amount of time than if you hadn't exercised. :]

Can a baby have a blow heart? and what is a blow heart?

The string-like structures that anchor the valve flaps of the AV valve are called the chordae tendinae, which attach to the papillary muscles of the ventricles. Interestingly enough, the bundle branches extend down and into the areas where the papillary muscles are located, and the resulting contraction of the ventricles ensures that the papillary muscles pull the valves tight, ensuring that they are closed thoroughly to prevent backflow in the heart.

Human beings, and mammals in general, have a certain type of heart, with four sections, called chambers. A chamber that receives blood is called an atrium (they were once called auricles), and a chamber that pumps blood is called a ventricle. Two chambers serve the function of receiving blood from the lungs and pumping blood to the lungs, and two other chambers receive blood from the rest of the body and pump blood to the rest of the body. Ambhibians and reptiles have a three chambered heart. Their hearts have only three sections, and their circulatory system is therefore somewhat simpler than that of mammals, and somewhat less efficient.

there is none, genious

Arteries and pulmonary veins

Check valve.

The heart is comprised of the left and right atria and the left and right ventricles. The atria pump blood to the lungs, where it is oxygenated. The oxygenated blood then returns to the heart, where the ventricles pump it to the rest of the body. They are made of cardiac muscle, which is branched, striated and contains intercalated discs, which coordinate rhythmic movement. The walls of the atria are thinner, due to the relatively short distance blood must travel to the lungs, while the ventricle walls are thicker and able to provide a stronger push for blood to travel through the body.

YES!!!!! wait, at lest i think they do! Yes we do. If we dint have a heart our organs would die which wouldd therefore cause death.

makes two sounds, "lubb" when the valves between the atria and ventricles close, and "dupp" when the valves between the ventricles and the major arteries close

A) SA node

B) Purkinje fibers

C) AV bundle branches

D) All of the above

ANSWER: D All of the above

hiya simon