The complement system is integral to a swift immune response to pathogens. Describe the key differences between the three complement system pathways and at what point do they converge? Not yet answered Marked out of 1,00 Flag question Ca channel blockers affecting the lungs: 1. reduces oxygen supply 2. dilatation of the bronchi occurs 3. lowers pulmonary artery pressure 4. bronchospasm occurs 5. increases pulmonary artery pressure