5:03 834 d2l.laurentian.ca Quiz 3 0:15:36 elapsed The anatomically dead space in the lungs is defined as a) the amount of air left in the lungs after a person dies b) it results from pathological changes in the respiratory tract c) the air in these spaces cannot be moved either into the lungs or into the outside air d) it describes areas into which air can only flow after death e) there is no exchange of

To solve the quiz question regarding the anatomically dead space in the lungs, let's analyze the options provided: 1. **Option a**: "the amount of air left in the lungs after a person dies" - This is not a correct definition of anatomical dead space, as dead space refers to areas of the lungs that do not participate in gas exchange, not specifically related to death. 2. **Option b**: "it results from pathological changes in the respiratory tract" - While pathological changes can affect lung function, anatomical dead space is not defined solely by these changes. 3. **Option c**: "the air in these spaces cannot be moved either into the lungs or into the outside air" - This statement is partially true, as anatomical dead space refers to areas where air does not participate in gas exchange, but it does not accurately capture the essence of anatomical dead space. 4. **Option d**: "it describes areas into which air can only flow after death" - This is incorrect, as anatomical dead space is not limited to post-mortem conditions. 5. **Option e**: "there is no exchange of" - This option seems incomplete, but it likely refers to the fact that there is no gas exchange occurring in anatomical dead space. Based on the definitions and characteristics of anatomical dead space, the most accurate option would be **Option c**, as it highlights the inability of air in these spaces to participate in gas exchange, which is a key characteristic of anatomical dead space. However, if Option e were completed to indicate "there is no exchange of gases," it would also be a correct statement regarding anatomical dead space. In conclusion, the best answer is **Option c**, but if Option e is completed to reflect the lack of gas exchange, it would also be valid.