To study resp my main advice is to understand concepts, don't just learn the concepts from the lectures of the textbook. If you feel like you don't understand what 'compliance of the chest wall' means, then don't be afraid to google some other sites/use youtube videos to understand these concepts.
I've forgotten all my respiratory physiology now, but when I studied it, I understood all the concepts. It made revising for the exam and the exam itself easy, because I actually understood the concepts. Not trying to brag (because I've forgotten it), but resp physiology is very conceptual, and everyone needs a different amount of time to understand it. You do need to memorise certain things as well, but you must understand it. Other modules of Medsci - it's just memorise, memorise, memorise.
I've forgotten all my respiratory physiology now, but when I studied it, I understood all the concepts. It made revising for the exam and the exam itself easy, because I actually understood the concepts. Not trying to brag (because I've forgotten it), but resp physiology is very conceptual, and everyone needs a different amount of time to understand it. You do need to memorise certain things as well, but you must understand it. Other modules of Medsci - it's just memorise, memorise, memorise.