Respiratory System: The network of organs and tissues that help you breathe

This is an MCQ-based quiz for GRE on the topic of Respiratory System.

This your airways, lungs, and blood vessels.

Start Quiz

What is the name of the structure that covers the airway while swallowing food?

Bronchus Trachea Larynx Epiglottis

What is cell type forms the lining of the alveoli?

Epithelial Basal Endothelial Apical Respiratory

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?

Some extracellular matrix (ECM) material helps connect the alveoli to the capillaries; the presence of this material causes the alveoli to The alveoli lie immediately adjacent to the capillaries around the lungs; the alveoli's spherical shape is nothing more than the result of the capillaries' generally round shape The epithelial cells of the alveoli have a natural tendency to form spherical shapes; the alveoli's shape is a result of this tendency and is somewhat of a biological accident Alveoli's spherical shape gives them the maximal amount of surface area possible for their volume; this large surface area allows for highly efficient gas exchange between the blood and the air in the lungs

What type of epithelial tissue surrounds the alveoli?

Simple cuboidal epithelium Simple columnar epithelium Simple squamous epithelium Stratified squamous epithelium

Which of the following structures is found within the lungs and helps facilitate gas exchange?

Trachea Microvilli Alveoli Secretory vesicles Bronchi

The function of an alveolus is most evident in the basic anatomy of which type of alveolar cell?

The cuboidal or round type 2 alveolar cells The very thin type 1 alveolar cells Clara cells The phagocytic alveolar macrophages

How many lobes does the right lung have?

Four Five Three One Two

Which of the following anatomical structures is found within the respiratory system?

Bronchiole All of these structures are found within the respiratory system Alveoli Pharynx Trachea

What respiratory structure connects the nasal passages and the mouth?

Bronchioles Lungs Trachea Larynx Pharynx

Which of the following is the correct path of air through the respiratory system?

Pharynx, larynx, trachea, bronchi, lungs Trachea, bronchi, larynx, pharynx, lungs Larynx, pharynx, bronchi, trachea, lungs Bronchi, pharynx, larynx, trachea, lungs Larynx, trachea, bronchi, pharynx, lungs
Quiz/Test Summary
Title: Respiratory System: The network of organs and tissues that help you breathe
Questions: 10
Contributed by: