Final answer:
The statement 'The angle of divergence of the left bronchus is greater than that of the right bronchus' is not true. The left bronchus is indeed more vertical but the right bronchus has a wider angle of divergence.
Step-by-step explanation:
The student's question seeks to identify which statement regarding the anatomy of the bronchi and the structure of the lungs is not true. Within the context of lung anatomy, we can analyze the veracity of each statement provided.
- The right lung contains three lobes. This statement is true; the right lung indeed has three lobes: superior, middle, and inferior.
- The left bronchus is more vertical than the right bronchus. This statement is true; the left bronchus is indeed more vertical to avoid the heart.
- The right bronchus is shorter than the left bronchus. This statement is also true as the right bronchus is shorter and wider than the left.
- The angle of divergence of the left bronchus is greater than that of the right bronchus. This is not true; the left bronchus has a sharper angle due in part to the heart's position, whereas the right bronchus has a wider angle of divergence.
Therefore, the statement that is not true is statement 4: 'The angle of divergence of the left bronchus is greater than that of the right bronchus.'