The specialized cell designed to control electrical impulses generated in the
nervous system is the:
a. Sacral plexus.
e. Vagus nerve.
SPECIAL INSTRUCTIONS FOR EXERCISES 49 THROUGH 53. Match the structure of
the respiratory system in Column A to its description in Column B. Mark your answers
in the space provided.
___ 49. Larynx.
Two branches of the air passageway, leading to
___ 50. Trachea.
A system of tiny air tubules within the lungs.
___ 51. Bronchi.
Tiny air spaces for exchange of oxygen and
___ 52. Bronchioles.
Between the pharynx and the trachea, containing
the vocal cords.
___ 53. Alveoli.
Carries air from the larynx to the bronchi.
What is the term for the air passage that enters directly into one of the lungs?
a. Pleural cavity.