Which of the following are called the resistance vessels?

• Arteries

• Arterioles

• Veins

• Venules

The horizontal fissure separates the:

• middle and upper lobes of the right lung

• upper and lower lobes of the left lung

• middle and lower lobes of the lung

• oblique fissure of the left lung

What is the largest cartilage of the larynx?

• Epiglottis

• Trachea cartilage

• Cricoid cartilage

• Thyroid cartilage

Gas exchange occurs in the __________ zone which is composed of respiratory bronchioles, alveolar sacs, and alveoli.

• Respiratory

• Lymphatic

• Conducting

• Vascular

The canals of Lambert are found in the:

• Main stem bronchi

• Trachea

• Alveoli

• Terminal bronchioles

Which of the following lines the anterior one-third of the nasal cavity?

• Simple squamous epithelium

• Pseudostratified ciliated columnar epithelium

• Stratified squamous epithelium

• Simple cuboidal epithelium

The left main stem bronchus angles off from the carina at about:

• 10 - 20 degrees from the carina

• 40 - 60 degrees from the carina

• 30 - 40 degrees from the carina

• 20 - 30 degrees from the carina

Which component does not make up part of the pulmonary vascular system?

• Capillaries

• Veins

• Arteries

• Alveolar macrophages

The ___________ is a cavity that contains organs and tissues in the center of the thoracic cage between the right and left lungs.

• Diaphragm

• Mediastinum

• Thorax

• Xiphoid process

What is the major muscle of ventilation?

• Diaphragm

• Lungs

• Heart

• Trapezius muscles