Heart

Well, first your body will go into shock immediately, causing you to become unconscious. Then you die. It may take 1 second to 10 seconds.

it drives it; if no one was ever curious about anything, there wouldn't be a need for science.

The Medulla Oblongata, AKA the Brain Stem, is responsible for all involuntary actions, including heart rate.

probably bald eagle heart tissue
just a wild guess
2nd guess would be meatballs

yes you can,but you have to control you're blood sugar level prior to dental extraction to prevent any infection

Reptiles and amphibians ;3

An excessive overload of the left atrium in the human heart is referred to as Left Atrial Enlargement. It can be caused by hypertension, obesity or congestive heart failure.

There are three majour ions that play a role in the cardiac conduction system. Soduim Soduim is slat mineral found in rock. It also comes in a liquid and is used in the heart. The hearts electrical impulses work on a thershold level of triggering depolarisation. Once the heart reaches a threshold for fireing impulses all the pacemakers depolarise. Soduim NA+ plays a role in the heart by determing the time of the threshold for depolarisation. The more soduim you have, the faster the threshold is reach so the pacemakers fire faster, like wise, the less soduim you have the slower the threshold for depolarisation and thus a decreases in heart rate. Pottasuim K+ Pottasium in the heart allows repolarisation to occur. K+ allows the heart cells to repolarise by dropping the threshold potential and this will re-open NA+ channels so that the threshold level is reached once more. K+ in the heart is a clear liquid. Calcuim Calcuim CA+ determinds the strength of cardiac contraction. The more CA+ you have the stronger the contraction and the less CA+ you have the weaker the contraction. Calcuim is also found in bones, however it is a key ion is muscles and it works with pre-load and the heart.

Heartbeat is under autonomic nervous system (involuntary) control, particularly by the Medulla Oblongata which is found in the brain stem. The brain stem is the portion that roughly connects the brain with the spinal cord. Anatomically, it is found below where the back part of your skull ends

From the closure of the two flaps of the mitral valve in the left ventricle

Yes, if it is sugar free.

Of course! Astral projection is an altered mind state that occurs naturally during sleep. If your heart stopped beating while projecting, then you would die every night when you fall asleep.

No. But the converse is true

Aortic, Bicuspid,tricuspid and Pulmonic valves.

Tissue plasminogen activator.

This question isn't detailed enough.

Taking drugs in the correct dosages help you, and can even make your heart better if that's what they are being taken for.

But some drugs, if abused, can increase, or decrease your heart rate, and could either put you into cardiac arrest, or make your heart stop all together.

It also causes palpitation and increases the blood pressure causing the heart to pump more blood faster and faster. Eventually the heart will get tired and the person might suffer a stroke or a heart attack also known as myocardial infarction.

The right coronary artery takes its blood supply from the right coronary sinus, just above the aortic valve and sprouting from the ascending aorta. The left coronary artery takes its blood supply from the left coronoray sinus, also coming off of the ascending aorta. From these main coronary arteries, the rest of the branch coronary arteries are derived.

No, your heart does not stop beating when you pass out. It just slows down to a very harmful and possibly deadly rate. As for the person who added the other answer if you think that it stopped beating go to the emergency room right away or call rescue. There is a major problem if that really happened.

I think mine just did. Scary as hell. Now I'm looking for help

The heart is located in the thoracic cavity, which also includes the lungs. In addition, the heart is in the mediastinum, which is the area between the two lungs.

This is typically determined on a case by case basis.

Short answer 'maybe'

It IS typiccally disqualifying if other conditions are also present (eg: heart murmur, etc)

This question can only be answered for certain by a military doctor at a MEPS or surgeon general.

Gather any and all medical records you can especially relating to the heart condition and bring them to a recruiter for your branch of choice. They can send them to a military doctor for review and determination. The answer can come back quick (a few days) or if it goes to the surgeon general it can take a couple of months.

If you are serious about the military then jump on this fast because it can take a while to complete the process due to additional medical tests that may need to be done.

Source: I am a US Air Force recruiter.

-99999

When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.

It means enlargement of the left ventricle of the heart. This is due to excess work done by the heart as in high blood pressure, damage to the heart muscle after heart attack, valvular disease, respiratory disease putting extra strain to the heart.