Respiratory System and Histology Quiz

Upper Respiratory Tract

• The upper respiratory tract includes the nose, nasal cavity, pharynx, and larynx.

Conductive Portion of the Respiratory System

• The function of the conductive portion of the respiratory system is to filter, warm, and humidify the air breathed in.

Overall Function of the Respiratory System

• The overall function of the respiratory system is to bring oxygen into the body and remove carbon dioxide from the body.

Alveolar Lining

• The alveolar lining is made up of about 95% type I alveolar cells.

Club Cells

• The function of club cells is to produce and secrete surfactant, which helps to reduce the surface tension of the air-water interface in the alveoli.

Respiratory System Components

• The respiratory system component that includes saclike alveoli in its wall is the bronchiolar-alveolar region.

Type II Alveolar Cells

• The main function of type II alveolar cells is to produce and secrete surfactant, which helps to reduce the surface tension of the air-water interface in the alveoli.

Mucous Production

• Goblet cells are responsible for mucous production in the respiratory epithelium.

Nasal Cavity

• The major role of the large venous plexuses in the lamina propria of the nasal cavity is to warm and humidify the air breathed in.

Larynx

• The vocal cords in the larynx are lined with stratified squamous epithelium.

Bronchi and Bronchioles

• The main difference between bronchi and bronchioles is that bronchi are larger and have cartilaginous walls, while bronchioles are smaller and have muscular walls.