Arteria

... left atrium by vena pulmonalis, but deoxygenated blood comes into R atrium, then goes into R ventricle, and finally leaves heart going through arteria pulmonalis. In Chondrychthyes and Osteichthyes(fishes), for example, there is no oxygenated blood going through their heart. In Amphibians, ...

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... reaction and raising sexual desire. This is a long story but one of them is that erotic stimulus will trigger the opening of sphincter of penile arteria, then the blood will flow filling cavernous tissue. That's how men got errection. Another thing is the effect of androgen is to raise libido. ...

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it also happen in human... you know the arteria is pretty thick and it would need nutriens also. so you can find vasa vasorum in cor also. try this http://www.med.uiuc.edu/histo/small/atlas/image/w53c/40a6.htm http://www.med.uiuc.edu/histo/small/atlas/image/w53c/10a2.htm ...

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... back to right atrium. Then, the contraction of right ventricle that comes afterwards will push its content (blood) to flow along the pulmonary arteria. This contraction is rhytmic and pulsatory. Similar to the condition in right ventricle, the blood pumped into pulmonary arteria then generates ...

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