Heart

The direction of the wave of contraction in the heart is important because it decides where the blood reflux will take place. The blood reflux could take place in the atria, or the blood from the heart could be ejected into the pulmonary artery or aorta.

for 5 seconds

I think you mean do not "HURT" when cut, and that would be toenails, fingernails, and hair. These parts are all "dead", so to speak, and have no nerve endings.

The Left atrium

Yes. Rhinos do have hearts. Not every living thing has a heart, such as plants. They have cells, and lower animals e.g. earthworms do not have hearts, but a rhinoceros is a mammal like a cat, dog or even a human, it has live young which it feeds on mother's milk.

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It could

TheDarkSheep the noob

Edit: ^ that guy was just trying to mess with us

I found this on a WC3 map, a bud of mine checked the triggers.

And the answer is:

DUN DUN DUN..................

Grave

2, the atria is the upper chamber of the heart. since there is alower and upper chamber in the heart, and the upper part is the atria, do the math: four chamber divided in half (two lower and two upper and 2+2=4) equals two which gives the the number of atria!

The meeting adj of the frontal, temporal and occipital horn gives a triangular shape mark .

blod specialy

mahatma gandhi

the interventricular sulcus is the groove that separates the ventricles

About 450 beats per minute

With a pick axe. What kind of question is that?

Depends on the person and situation.

Experiencing chest pain is scary for most people. Whenever a person enters into the health care system with chest pain, it is incumbent upon the physician to find the cause of the pain. Chest pain can be caused by a number of conditions. Diseases like pneumonia, pleurisy, stomach ulcers and other process can cause chest pain. Most physicians start by ruling out a cardiac etiology.

Upon entry into the system patients with chest pain will receive an electrocardiogram and lab tests. If either of these tests indicates a potential cardiac problem, the physician will order a heart catheterization. This is an outpatient procedure done to determine if the patient has any heart blockages. Early detection and treatment of these blockages can save the person's life by preventing a heart attack.

The patient is sedated, but not given general anesthesia. A slim catheter is entered into a major artery via a small incision in the groin or arm. The catheter is then threaded up into the heart using x-ray technology. Dyes are inserted and the physician can visual the heart and vessels on a monitor. The physician can follow the flow of blood through the heart and determine if there are areas of restriction. If restrictions are present, the physician can insert stints to open the vessels.

Recovery takes several hours. A sandbag or pressure device is placed on the area where the heart catheterization was done. This is necessary to ensure that the area does not bleed. Without appropriate pressure, the area can bleed into the surrounding tissues. The recovery staff will require the patient to rest flat on his or her back for at least 6 hours. Then the pressure device can be removed, and the patient can go home.

There are risks associate with a heart catheterization. The patient can have an allergic reaction, infection, heart attack during the procedure, infection, and other complications. However, the majority of patients have no adverse effects from the procedure.

Finding blockages and repairing them early provides a patient with the best possible outcome. The earlier the plaque is found the smaller it is this makes restoring the blood flow to the vessel easier. The larger the blockage is, the harder it is to restore blood flow. Regardless of the size of the blockage, having a heart catheterization can detect these deadly blockages and get them treated averting life-threatening conditions.

The heart pumps blood to different parts of the body through small tubes called blood vessels.

The human body has two circulatory systems.

Pulmonary Circulation and Systemic Circulation.

Pulmonary Circulation - blood flows from the heart to the lungs and then back from lungs to heart.

Systemic Circulation - blood flows from the heart to other organs in the body and back from other organs to the heart.

They are called ventricles.

the left ventricle is more powerful because it has to pump blood through the whole bady, whereas the right ventricle only supplies the heart and lungs

Your wouldn't be beating for long without your brain keeping the beating at a rhythmic pace and anyway you'd be brain dead

That is a question best answered by your cardiologist. It all depends on the type of surgery and how well your recovery went.

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Dashpot Overload Relay

The oxygen is carried in the blood from the left side of your heart. As if travels around your body it distributes that oxygen to other organs and collects carbo hydrate. When is reaches the right side of your heart, it guides the blood to the lungs which collects carbo hydrates. When the human breathes out that is released. The blood continues onto the left side of the heart where it collects oxygen and the cycle repeats, unless your death.

When I see a drawing if an arrow through a heart the first thought I have is a broken heart. But if I really thought about it I'd probably think of Cupid... I guess it could also have the meaning of true love, love at first sight... I dunno? But I hope this helped! :)