Practice question
Question
The respiratory zone of lungs includes all EXCEPT:
Explanation
Correct option is D, Terminal bronchioles. In Cardiac Cycle and Regulation, the accurate description is Terminal bronchioles, and that is what you should commit to memory. Keep the definition tight and the role clear — the stem is asking for the statement that does not fit the usual rule, and Terminal bronchioles is that exception in the context of Cardiac Cycle and Regulation. Then Terminal bronchioles is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Terminal bronchioles.