Saturday, March 20, 2010

C'est bizarre, la biologie.

Reason # 123:

I couldn't be farther from you and still feel your inferior and superior vena cava sending de-oxygenated blood into your right atrium, which pumps it through a tricuspid, atrioventricular valve into the right ventricle, where the blood is sent to your lungs and, through gas exchanges in the alveoli, becomes oxygen-rich and returns via the pulmonary veins to your left atrium, where it is pumped through a bicuspid atrioventricular valve into your left ventricle, after which that oxygen-rich blood is pumped through a semi-lunar valve straight into your aorta, to be delivered everywhere in your body but the lungs.

2 comments:

  1. You knew of course that your father's inferior vena cava is dislocated reflectively from other people's, but his heart is in the right place.

    http://img.tfd.com/MosbyMD/thumb/inferior_vena_cava.jpg

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  2. I did know this. That doesn't correspond with anything I learned in bio, but there you are.

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