Which of the following statements about the trachea is false?
A) It is lined by pseudostratified ciliated columnar epithelium.
B) Tracheal cartilages prevent tracheal collapse.
C) It contains many mucous glands.
D) It alters its diameter in response to the autonomic nervous system.
E) It is completely wrapped in smooth muscle.
Question 2
Descending branches of the vagus and splanchnic nerves travel through the ________ plexus.
A) cardiac
B) pulmonary
C) hypogastric
D) esophageal
E) celiac