The pulmonary (functional) and bronchial (nutritive) arterial systems enter the lungs separately at the hilus but anastomose into a single system at which level?

Name: The pulmonary (functional) and bronchial (nutritive) arterial systems enter the lungs separately at the hilus but anastomose into a single system at which level?
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Question

Quizplus · Accepted Answer

The pulmonary and bronchial arterial systems anastomose at the level of the respiratory bronchioles, where the gas exchange begins.

The Pulmonary (Functional) and Bronchial (Nutritive) Arterial Systems Enter the Lungs