Exam 23: The Respiratory System

Inhaling through the nostrils is preferred over the mouth because

Primary bronchi are to ________ as secondary bronchi are to ________.

Under quiet conditions, blood returning to the heart retains about ________ of its oxygen content.

The nasopharynx transitions into the oropharynx at the level of the

If PO2 increases

The leading cause of death for children under 1 year of age is

The partial pressure of oxygen in atmospheric air at sea level is

Which of the following are not present prior to birth?

________ = respiratory rate × (tidal volume - anatomic dead space)

The serous membrane that covers the lungs is the

A common site to place a tracheostomy tube is through the ligament that connects the cricoid cartilage to the ________ cartilage.

Functions of the nasal cavity include all of the following except

Children have slender, short vocal cords so their voices tend to be

A typical respiratory minute volume is

The ________ fissure separates the lobes of the left lung.

Expiratory movements are produced by contraction of the ________ muscle.

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following questions: -What produces the movement labeled "2"?)

Which of the following age-based changes is false?

In-Text Figure Based Questions -According to these graphs, more oxygen is released when the pH is (higher or lower) than normal and whentemperature is (higher or lower) than normal. (Figure 23-20)

An elastic ________ ligament and the ________ muscle connect the ends of tracheal cartilage.