This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Anatomy
Polyaeritis nodosa does not involve in 
Select and explain. 
A. Pulmonary aery, B. Bronchial aery, C. renal aery, D. Cerebral aery
A: Pulmonary aery
Answer: A: Pulmonary aery 
Explanation: Refer robbins 9/e 509/510 Polyaeritis nodosa (PAN), is a systemicnecrotizing inflammation of blood vessels (vasculitis) affecting medium-sized muscular aeries, typically involving the aeries of the kidneys and other internal organs but generally sparing the lungs' circulation. Polyaeritis nodosa may be present in infants. In polyaeritis nodosa, small aneurysms are strung like the beads of a rosary, therefore making "rosary sign" an impoant diagnostic feature of the vasculitis. PAN is associated with infection by the hepatitis B or hepatitis Cvirus