The smallest conducting respiratory passageways are called the

• bronchioles

• trachea

• glottis

• alveoli

Which of the following structures closes off the larynx during swallowing

• glottis

• epiglottis

• esophagus

• palate

The anatomical name for the windpipe is the

• glottis

• epiglottis

• trachea

• vocal cords

The main function of the squamous epithelial cells in the alveolar walls is

• to create surfactant

• stimulate the diaphragm

• reduce surface tension

• gas exchange

The main function of surfactant in the alveoli is

• to reduce surface tension of the avleolar fluid

• gas exchange

• close off the larynx during swallowing

• separate the oral and nasal cavities

Tags

NGSS.HS-LS1-3

Structure A represents

• the epiglottis

• the hyoid bone

• thyroid cartilage

• circoid cartilage

Structure B represents

• the epiglottis

• the hyoid bone

• thyroid cartilage

• circoid cartilage

All of the following are functions of the larynx EXCEPT

• provides a patent airway

• acts in voice production

• serves as a switching mechanism to route food into the esophagus

• stimulation of the diaphragm

The period of breathing when air enters the lungs is referred to as

• expiration

• inspiration

• ventilation

• all of the above

The exchange of gases between the systemic capillary blood and body cells is referred to as

• ventilation

• inspiration

• expirations

• internal respiration