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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A middle aged man presented with blood in the sputum. Aery responsible for bleeding in hemoptysis is?
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The correct answer is  Aeriographic studies in patients with active hemoptysis have shown that the systemic circulation (bronchial aeries) is primarily responsible for the bleeding in approximately 92% of cases. The bronchial aeries, which originate either from the aoa or from intercostal aeries and are therefore pa of the high-pressure systemic circulation, are the source of bleeding in bronchitis or bronchiectasis or with endobronchial tumors. Ref: Irwin and Rippe's Intensive Care Medicine edited by Richard S. Irwin, James M. Rippe, 2008, Page 589 ; Harrison's 17th ed table 34-1