Chapter 22: The Respiratory System

Which of the following anatomical structures is not part of the conducting zone?

• pharynx

• nasal cavity

• alveoli

• bronchi

What is the function of the conchae in the nasal cavity?

• increase surface area

• exchange gases

• maintain surface tension

• maintain air pressure

The fauces connects which of the following structures to the oropharynx?

• nasopharynx

• laryngopharynx

• nasal cavity

• oral cavity

Which of the following are structural features of the trachea?

• C-shaped cartilage

• smooth muscle fibers

• cilia

• all of the above

Which of the following structures is not part of the bronchial tree?

• alveoli

• bronchi

• terminal bronchioles

• respiratory bronchioles

What is the role of alveolar macrophages?

• to secrete pulmonary surfactant

• to secrete antimicrobial proteins

• to remove pathogens and debris

• to facilitate gas exchange

Which of the following structures separates the lung into lobes?

• mediastinum

• fissure

• root

• pleura

A section of the lung that receives its own tertiary bronchus is called the ________.

• bronchopulmonary segment

• pulmonary lobule

• interpulmonary segment

• respiratory segment

The ________ circulation picks up oxygen for cellular use and drops off carbon dioxide for removal from the body.

• pulmonary

• interlobular

• respiratory

• bronchial

The pleura that surrounds the lungs consists of two layers, the ________.

• visceral and parietal pleurae.

• mediastinum and parietal pleurae.

• visceral and mediastinum pleurae.

• none of the above