Why blood does not clot in lung when it comes in contact with oxygen?

Discussion in 'General Science & Technology' started by plakhapate, Mar 13, 2005.

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  1. plakhapate

    plakhapate Banned Banned

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    When we have a wound, blood comes out.

    It forms a clot when it comes in cotact with oxygen.

    Why blood does not clot in lung when it comes in contact with oxygen?

    Pls explain such that common man can understand.

    P.J.LAKHAPATE

    plakhapate@rediffmail.com
     
    plakhapate, Mar 13, 2005
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  3. Nomadd22

    Nomadd22 Registered Senior Member

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    Blood clots in a wound because the damaged tissue secretes thrombokinase, which inhibits the anticoagulant heprin that's always in your blood. Blood in the lungs isn't exposed to gaseous oxygen, but to dissolved oxygen that passes through the membrane.
     
    Nomadd22, Mar 13, 2005
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  5. Maddad

    Maddad Time is a Weighty Problem Registered Senior Member

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    Blood does not clot so much because of contact with oxygen but because platellets, a component of blood, sticks to the rough edges of the wound. Also, as Nomadd22 says, there are enzymes that either inhibit or enhance clotting.
     
    Maddad, Mar 15, 2005
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