Question
Biology Question on Exchange Of Gases
??X??s a part of respiratory system that contains C-shaped rings of hyaline cartilage.??X??s lined with ciliated, pseudostratified columnar epithelium.Identify??X?
A
Nasopharynx
B
Glottis
C
Larynx
D
Trachea
Answer
Trachea
Explanation
Solution
Trachea, Those rings keep the trachea open for all the time. They are C-shaped in order to allow the open end to face the esophagus.