Which of the cranial nerves has many diverse functions, such as controlling muscles of speech and swallowing, and providing sensation in the pharynx, esophagus, and thoracic and abdominal viscera?

A) Accessory nerve
B) Vagus nerve
C) Glossopharyngeal nerve
D) Trigeminal nerve
E) Trochlear nerve

Permeability refers to

A) the movement of molecules from an area of greater concentration to an area of lesser concentration.
B) the extent to which a membrane allows a substance to pass through.
C) the amount of solute in a solution.
D) the state of being permanent.
E) the ability to establish a permanent solute level in a solution.