Respiratory System and Histology Quiz

The overall function of the respiratory system is gas exchange between the organism and the external environment, specifically the exchange of CO2 and O2.

The anatomical divisions of the respiratory system are the upper respiratory tract (nose, pharynx, and associated structures) and the lower respiratory tract (larynx, trachea, bronchi, and lungs).

The functional classification of the respiratory system includes the conductive portion (filtering, humidifying, and moistening the air) and the respiratory portion (site of gas exchange).

<ol> <li>Ciliated Columnar cells, 2) Goblet cells, 3) Brush cells, 4) Small granule cells, 5) Basal cells</li> </ol> Signup and view all the answers

<p>To warm inspired air via heat exchange</p> Signup and view all the answers

<p>Mucosa, Submucosa, Musculo-cartilaginous layer, Adventitia</p> Signup and view all the answers

<p>Bronchi have mucosal glands and cartilage, while bronchioles lack them</p> Signup and view all the answers

<p>Club cells are non-ciliated, dome-shaped cells with secretory granules. They secrete surfactant, mucin, and play a role in immune defense.</p> Signup and view all the answers

<p>Terminal bronchioles have a thin, incomplete layer of smooth muscle, no cartilage, and are the last part of the conducting portion. Respiratory bronchioles have alveoli in their walls and consist of ciliated cuboidal cells, club cells, and simple squamous cells at the alveolar openings.</p> Signup and view all the answers

<p>Alveolar sacs have squamous cells and an abundance of elastic and reticular fibers. They also have a prominent network of capillaries.</p> Signup and view all the answers

<p>Type I alveolar cells make up 95% of the alveolar lining and have tight junctions that prevent the leakage of tissue fluid into the alveolar air space. They play a role in gas exchange and maintain the structure of the alveoli.</p> Signup and view all the answers