system
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
Maximum CO2 is seen in-
assistant
The correct answer is  Ans. is 'b' i.e., Pulmonary artery o Pulmonary arteries carry deoxygenated blood (with maximum CO2) to lung from right ventricle,o In lung CO2 is removed and oxygenation of blood takes place.o Pulmonary veins, then, transport this oxygenated blood (with less CO2) to the left atrium.