Exam 23: The Respiratory System

Ralph is taking scuba diving classes and is warned not to hold his breath when ascending from depth but to continuously release air from his mouth. What is the basis of this instruction and what is the risk if it is ignored?

The glottis is

Which of the following descriptions best matches the term bronchiolar smooth muscle?

The ________ branch from the trachea at the carina.

The following is a list of some airways. What is the order in which air passes through them? 1) lobar bronchus 2) bronchioles 3) alveolar ducts 4) primary bronchus 5) respiratory bronchiole 6) alveoli 7) terminal bronchiole

The chloride shift occurs in order to

In which direction does carbon dioxide move during internal respiration?

The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately

In-Text Figure Based Questions -The inspiratory capacity is a total of what two pulmonary volumes? (Figure 23-16)

Damage to the phrenic nerves would

When the inspiratory muscles relax, the rib cage returns to its original position as a result of

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -Identify the structure labeled "5."

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following questions: -What is the relationship between the pressures at label "3"?

What are the primary functions of the respiratory system?

A pair of ligaments covered by laryngeal epithelium that function in sound production are the

Use of the accessory respiratory muscles is characteristic of forced breathing, or

The auditory tubes open into the

The ________ of the lungs is an indication of their expandability, how easily the lungs expand and contract.

Which bone does not form part of the lateral or superior walls of the nasal cavity?

Air flows between nasal conchae through the