Mediastinum moves up down during respiration without tearing lungs because of ______.
A. Spongy lungs
B. Large hilums
C. Mediastinal flexibility
D. Pulmonary ligaments
Answer:D
Mediastinum moves up down during respiration without tearing lungs because of ______.
A. Spongy lungs B. Large hilums C. Mediastinal flexibility D. Pulmonary ligaments