2007-01-18 02:43:24 · 2 answers · asked by niclyl7 1 in Science & Mathematics ➔ Biology
I am assuming that that's a typo and you meant "trace the path of blood through the human heart" as otherwise the question doesn't make sense.
Deoxygenated blood enters the heart from the superior and inferior vena cava (the biggest veins in the body) via the right atria. It then passes through the tricuspid valve into the right ventricle. The right ventricle contracts and the pulmonary valve opens. From there blood is pumped into the pulmonary arteries by and spreads all across the lungs where gas exchange occurs with the air in the alveoli.
Once the deoxygenated blood is oxygenated it passes back to the heart via the pulmonary arteries and enters the left atrium. Once the right atrium is full the mitral valve opens and the left ventricle fills up. The left ventricle then pumps blood out through the aortic valve into the aorta - the biggest artery in the body.
2007-01-21 03:05:31 · answer #1 · answered by the last ninja 6 · 1⤊ 0⤋
it goes from here to there and from there i dont where..............lol
2007-01-18 02:47:28 · answer #2 · answered by Andrew goel 2 · 0⤊ 2⤋