GCSF 2013 - Structures and function of respiratory system

Which of the following structures is NOT part of the upper respiratory system?

• Nasal cavity

• Larynx

• Paranasal sinuses

• Nasopharynx

The trachea's inner lining is composed of which type of epithelium?

• Simple squamous epithelium

• Stratified squamous epithelium

• Pseudostratified ciliated columnar epithelium

• imple cuboidal epithelium

How many cartilages make up the larynx?

• 7 cartilages

• 8 cartilages

• 9 cartilages

• 10 cartilages

Which of the following is unique to the right lung compared to the left lung?

• Presence of visceral pleura

• Contains 3 lobes

• Has a cardiac notch

• Contains primary bronchi

What is the correct sequence of airway branching from largest to smallest?

• Bronchi → Bronchioles → Terminal bronchioles → Alveolar ducts

• Terminal bronchioles → Bronchi → Bronchioles → Alveolar ducts

• Bronchioles → Terminal bronchioles → Bronchi → Alveolar ducts

• Alveolar ducts → Bronchi → Bronchioles → Terminal bronchioles

Which of the following correctly describes the organization of the pharynx from superior to inferior?

• Oropharynx, nasopharynx, laryngopharynx

• Nasopharynx, oropharynx, laryngopharynx

• Laryngopharynx, oropharynx, nasopharynx

• Nasopharynx, laryngopharynx, oropharynx

Which statement about the lungs is accurate?

• Both lungs have three lobes and two fissures

• The right lung has two lobes and the left has three

• Both lungs have two lobes and one fissure

• The right lung has three lobes and the left has two

The pleural membrane that covers the lungs consists of two layers. These are:

• Superior and inferior pleura

• Anterior and posterior pleura

• Medial and lateral pleura

• Parietal and visceral pleura

Which structure represents where gas exchange occurs?

• Terminal bronchioles

• Respiratory bronchioles

• Alveoli

• Bronchi

The nasal cavity contains important structures that help condition incoming air. Which of these is a correct feature of the nasal cavity?

• Smooth walls without projections

• Nasal conchae

• Stratified squamous epithelium only

• Absence of blood vessels