Air flows between nasal conchae through the
A) dorsum nasi.
B) apex.
C) external nares.
D) nasal vestibule.
E) superior, middle, and inferior nasal meatuses.
Question 2
Muscarinic receptors
A) are normally activated by acetylcholine.
B) are found mostly in autonomic ganglia.
C) always produce an excitatory response.
D) control sodium channels in the affected membrane.
E) are blocked by norepinephrine.