Respiratory System pt 2

The largest bronchus or trunk of the tracheobronchial tree is the:

• right mainstem bronchus

• left mainstem bronchus

• bronchiole

• trachea

The site of bifurcation of the right and left lungs is called the:

• alveoli

• carina

• trachea

• capillary

If an object is aspirated into the airways, it is most likely to go to the:

• right lung

• left lung

• stomach

• oropharynx

The first portion of the airway where gas exchange begins is the:

• terminal bronchiole

• trachea

• mainstem bronchus

• respiratory bronchiole

The alveolar layer that lowers surface tension to keep the alveoli expanded is the:

• surfactant layer

• capillary layer

• epithelium layer

• macrophage layer

The alveolar cell that allows for gas exchange is the:

• squamous cell

• granular cell

• macrophage cell

• Kohn cell

What are the 3 types of cells found in the alveoli?

• Squamous pneumocytes, granular pneumocytes, and macrophages

• Type II, Type III, Type VI cells

• Simple squamous epithelium, pseudostratified epithelium, and ciliated columnar epithelium

• Simple squamous epithelium, pseudostratified epithelium, and pseudostratified columnar epithelium

The iron-containing molecule responsible for transporting oxygen in the blood is ____.

The ___ pleura lines the thoracic cavity.

• visceral

• parietal

• mediastinum

• chest

The portion of the sternum where CPR is performed is the:

• xiphoid process

• ribs

• manubrium

• body