Which answer properly describes the relationship between the quantities in 1 and 2?  The number of foreign particles within the air hitting the trachea.    2.  The number of foreign particles in the air hitting a bronchiole.

Which arrow is pointing to the ileocecal sphincter?  

The nasal conchae:

Name the structure marked “C”.

The nasal conchae:

Name the space marked “A”.

Name the layer marked “D”.

Which arrow below is pointing to the tongue?

Which arrow below is pointing to the hepatic duct?

Each of the following is a function of saliva except: