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Histological aspects of respiratory system

Question

Which of following statements about arteries in the lung circulation is true?

1
There is a low pressure in the pulmonary circulation, therefore arteries are thinwalled than arteries in the system circulation
2
There is a low pressure in the pulmonary circulation, therefore arteries are thickwalled than arteries in the system circulation
3
There is a high pressure in the pulmonary circulation, therefore arteries are thinwalled than arteries in the system circulation
4
There is a high pressure in the pulmonary circulation, therefore arteries are thickwalled than arteries in the system circulation

OPTION 1