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What would happen if the valve between the the right atrium and the right ventricle did not work properly?
Heart attack
What else can I help you with?
Can blood go backwards from the right ventricle to the right atrium?
Yes, blood can flow backwards from the right ventricle to the right atrium in a condition known as tricuspid valve regurgitation. This occurs when the valve between the right ventricle and right atrium does not close properly, allowing some blood to flow back into the atrium.
What happen when the ventricles of your heart contract?
The "beat" of your heart is the contraction of the right and left ventricles. The right atrium passes blood from the body into the right ventricle -- when the ventricle contracts, it forces shut the valve leading back to the atrium, and the blood is pushed into the pulmonary arteries that lead to the lungs. The blood returns from the lungs to the left atrium, and flows into the left ventricle. When the left ventricle contracts, the blood is pushed out of the ventricle into the aorta, the body's main artery, to be carried through the arterial system to the various parts of the body.
What happen when the right atrium contracts?
At the beginning of the cardiac cycle after they receive an action potential from they synoatrial node. After a short pause, they produce the 'lubb' sound as the atrioventricular valves close to prevent back flow of blood.
Which compartment of the heart would receive blood flowing in the wrong direction through a defective mitral valve?
The mitral valve (or bicuspid valve) is the left atrioventricular valve. That means the left atrium would receive blood flow from the left ventricle (the wrong direction) if there was a regurgitation in that valve.
What would happen if we had two-chambered heart (one atrium one ventricle with the vena cava entering the atrium and the aorta leaving the ventricle?
If humans had a two-chambered heart consisting of one atrium and one ventricle, the efficiency of blood circulation would be significantly reduced. Deoxygenated blood from the body would enter the atrium, mix with oxygenated blood from the lungs in the ventricle, and then be pumped out to the body through the aorta, resulting in a lower oxygen supply. This design would lead to less effective oxygenation of tissues and could cause fatigue and other health issues due to inadequate oxygen delivery. Overall, such a heart structure would not support the higher metabolic demands of complex organisms like humans.
What two heart chambers contract last in a normal cardiac cycle?
FIRST: Atrial contractions: - Right atrium forces the blood into the Right ventricle (through the tricuspid valve) - Left atrium forces the blood into the Left ventricle (through the the Mitral (or Bicuspid valve) FOLLOWED BY: Ventrical conctractions: - Right ventricle forces the blood into the Pulmonary trunk (through the Pulmonary semilunar valve) - Left ventricle forces the blood into the Aorta (through the Aortic semilunar valve). Contractions in both atrium happen simultaniously, just like contractions in both ventricles. More info can be found on http://en.wikipedia.org/wiki/Heart
What would happen to blood flow when the mitral valve is not working correctly?
This condition is called as mitral regurgitation. Here some of the blood flows back to left atrium. So the left atrium gets dilated and there is also hypertrophy of the left ventricle. The efficacy of the heart is adversely affected. There is diminished cardiac out put. In severe cases, you have left sided heart failure.
What would happen if the valve between the right atrium and the right verticle didn't work?
You hump your mom
What are the directions that the blood travels through the heart?
Blood from the systemic circulation system is carried by way of the superior and inferior vena cava, both of which empties into the right atrium of the heart. Blood then passes through the tricuspid valve and enters the right ventricle. Next, the blood is pumped out of the right ventricle, through the pulmonary valve, and to the lungs via the pulmonary arteries. Blood gases are exchanged at the lungs as blood flows through the capillary beds of the alveoli. Blood flows back to the heart via the pulmonary veins and enters the left atrium. Blood from the atrium is pumped into the left ventricle through the mitral valve. Finally, Blood then leaves the left ventricle through the aortic valve and enters the aorta. The aorta once again begins the systemic portion of the circulation system and branches off into many arteries.
What happen to the blood in the right atrium?
The blood in the right atrium receives deoxygenated blood from the body through the superior and inferior vena cava. It then passes through the tricuspid valve into the right ventricle to be pumped to the lungs for oxygenation.
Can a stroke happen due to a hole in the heart?
Yes. In what's called an Atrial Septal Defect, a clot, such as a deep vein thrombosis (DVT) can travel up the inferior vena cava from the legs, into the right atrium, get shunted through the hole into the left atrium, into the left ventricle and out into circulation where it would travel up the carotids into the brain causing stroke.
What will happen to the oxygen level as the blood enters the other loop of the blood pattern?
I am not really sure what loop you are asking about, because there are two different loops. I will do my best to explain the loops in a much simpler way than most sciency-websites. First, the de-oxygenated blood would start in the left ventricle, which pumps blood out of it. This pumps the blood into left atrium (which blocks blood from going to opposite direction into your left ventricle). Then, it goes into your veins, which lead to your lungs. The blood then becomes oxygenated, and comes back to your heart, into your right atrium, and then to your right ventricle. This ventricle then pumps the oxygen rich blood out through your arteries, which carry the blood throughout the rest of your body. Then, it ends up coming back to your heart and into your left ventricle, and the process starts all over again.
