if blood entering the heart gets mixed with blood leaving the heart the the blood leaving the heart will get poluted. the blood entering the heart is poluted when it enters the heart, the heart cleans it up; so when the blood leaves the heart it is clean so if it gets polluted the person may get sick and this leads to his/her death.
As is seen with mitral valve regurgitation, this would result in less blood leaving the heart and a lower cardiac output. The heart would have to work harder to maintain adequate blood pressure, and the person may find that they become easily fatigued with oxygen taking longer to reach vital organs.
If blood leaving and entering the heart were mixed, then the efficiency of oxygen delivery to the body's tissues would be decreased. Such a condition is normal for a fetus, but abnormal after birth. This mixing after birth may result from a septal defect -- what my parents' generation referred to as a "blue baby."
If deoxygenated blood entering the heart mixed with oxygenated blood leaving the heart, the provision of oxygen-containing blood would be less efficient. The separation of the two circulatory systems allows more oxygen to be transported with less energy.
Since the blood returning from the lungs must come from the right side this can not happen.
The blood leaving the heart would not be as oxygen rich as it should be.
i believe you would get a heart attack
Blood coming from the lungs has lower pressure while that from the heart has higher pressure. Blood coming from the lungs also has higher oxygen content and lower carbon dioxide content compared to that coming from the heart.
Four main blood vessels enter/exit the heart: two veins and two arteries. Oxygenated blood enters the left ventricle through the pulmonary vein. This same blood is then pumped out of the left atrium via the aorta. Meanwhile, de-oxygenated blood enters the heart in the vena cava; before leaving through the pulmonary artery.
No, semilunar valves control the flow of blood out of the heart.
stallings
From the vena cava, blood travels into the right atrium, then the right ventricle. The right ventricle pumps the blood through the pulmonary arteries to the lungs. The pulmonary vein carries the oxygenated blood back to the left atrium. The blood flows from the left atrium into the left ventricle which pumps the blood through the aorta and to the rest of the body.
if blood entering the heart gets mixed with blood leaving the heart the the blood leaving the heart will get poluted. the blood entering the heart is poluted when it enters the heart, the heart cleans it up; so when the blood leaves the heart it is clean so if it gets polluted the person may get sick and this leads to his/her death.
pumping
The blood leaving the kidneys have most of the waste products removed. The kidneys do use some of the oxygen in the blood, but only a tiny amount, so the outflow is essentially clean arterial blood.
The blood entering from the lungs has a high oxygen content and the blood entering from the body is high in carbon dioxide.
Blood entering the heart from Superior vena cava and Inferior vena cava is "dirty". Bloold going through Pulmonary artery is 'dirty" and is "cleaned" (oxygenated) in the lungs. Blood entering the heart via pulmonary vein and leaving via aorta is clean.
Blood coming from the lungs has lower pressure while that from the heart has higher pressure. Blood coming from the lungs also has higher oxygen content and lower carbon dioxide content compared to that coming from the heart.
Four main blood vessels enter/exit the heart: two veins and two arteries. Oxygenated blood enters the left ventricle through the pulmonary vein. This same blood is then pumped out of the left atrium via the aorta. Meanwhile, de-oxygenated blood enters the heart in the vena cava; before leaving through the pulmonary artery.
This does happen -- to babies born with a hole in the part of the heart that divides the right ventricle from the left ventricle. It makes it difficult for them to oxygenate their tissues well and makes it more difficult for them to thrive as other children do. Years ago, doctors would wait several years to fix such defects. I do not know how long they wait now.
This does happen -- to babies born with a hole in the part of the heart that divides the right ventricle from the left ventricle. It makes it difficult for them to oxygenate their tissues well and makes it more difficult for them to thrive as other children do. Years ago, doctors would wait several years to fix such defects. I do not know how long they wait now.
When talking about the right or flight response in regards to the the vasoconstriction of blood vessels entering and leaving the heart, the biological advantage is having your heart ready and your muscles ready for anything. As for the conversion of glycogen to glucose, this is referring to the energy your body uses.
This does happen -- to babies born with a hole in the part of the heart that divides the right ventricle from the left ventricle. It makes it difficult for them to oxygenate their tissues well and makes it more difficult for them to thrive as other children do. Years ago, doctors would wait several years to fix such defects. I do not know how long they wait now.
Inferior venecava and superior venecava.........2