This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Physiology
Which of the following is a neuroendocrine function of lungs? 
Select and explain. 
A. Erythropoiethin secretion, B. Angiotensin conversion, C. Manufacture surfactant, D. Fibrinolytic substance secretion
B: Angiotensin conversion
Answer: B: Angiotensin conversion 
Explanation: Metabolic and excretory functions of lungs 1.Synthesized and used in the lungs Surfactant 2.Synthesized or stored and released into the blood Prostaglandins Histamine Kallikrein 3.Paially removed from the blood Prostaglandins Bradykinin Adenine nucleotides Serotonin Norepinephrine Acetylcholine 4.Activated in the lungs Angiotensin I - angiotensin IIRef: Ganong review of medical physiology 23rd edition Page no: 606