22. Respiratory System
Lower Respiratory System
Multiple Choice
Multiple ChoiceWhich of the following is NOT a function of the trachealis muscle?
A
It helps expel mucus during coughing.
B
It allows the esophagus to expand anteriorly when food is swallowed.
C
It decreases its diameter during expiration to expel air with greater force.
D
It prevents the trachea from collapsing and keeps it patent despite the pressure changes that take place during breathing.
1375
views
Related Videos
Related Practice
Showing 1 of 2 videos