Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) hereditary hemorrhagic telangiectasia ?
    ### Response:
    Hereditary hemorrhagic telangiectasia is a disorder that results in the development of multiple abnormalities in the blood vessels.  In the circulatory system, blood carrying oxygen from the lungs is normally pumped by the heart into the arteries at high pressure.
    