GRE Subject Test: Biology › Understanding Respiratory Structures
How many lobes does the right lung have?
Before it enters the lungs, air must pass through which of the following structures?
The function of an alveolus is most evident in the basic anatomy of which type of alveolar cell?
What is the name of the structure that covers the airway while swallowing food?
What is cell type forms the lining of the alveoli?
Which of the following anatomical structures is found within the respiratory system?
What respiratory structure connects the nasal passages and the mouth?
The alveoli of the human lungs cluster together in alveolar sacs. These clusters are commonly said to resemble clusters of grapes, as the nearly spherical alveoli appear to bud away from "stems" (alveolar ducts). Which response best explains the alveoli's spherical shape?
Which of the following is the correct path of air through the respiratory system?
What type of epithelial tissue surrounds the alveoli?