Anatomy of the Respiratory System

Structure A represents

• the epiglottis

• the hyoid bone

• thyroid cartilage

• circoid cartilage

Which part of the pharynx is most superior?

• laryngopharynx

• nasopharynx

• oropharynx

• alveolarpharynx

The smallest conducting respiratory passageways are called the

• bronchioles

• trachea

• glottis

• alveoli

The anatomical name for the windpipe is the

• glottis

• epiglottis

• trachea

• vocal cords

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

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

• to create surfactant

• stimulate the diaphragm

• reduce surface tension

• gas exchange

Structure B represents

• the epiglottis

• the hyoid bone

• thyroid cartilage

• circoid cartilage

What is labeled at E?

• bronchi

• trachea

• pharynx

• none of the above

What is labeled F?

• bronchioles

• trachea

• bronchi

• diaphragm

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli