Exam 15: The Respiratory System

The phrenic nerves carry motor impulses to the ____________________.

For healthy people, the normal range of respirations per minute is:

The internal intercostal muscles pull the ribs:

A minute respiratory volume that could help compensate for metabolic acidosis would be:

An elevated blood CO₂ level is a stimulus for the breathing rate to ____________________ in order to ____________________.

During breathing, friction between the pleural membranes is prevented by:

The volume of air left in the lungs after the most forceful exhalation is called:

Two functions of the nasal mucosa are to ____________________ the incoming air and add ____________________.

A forced exhalation requires the ____________________ muscles, which pull the ribs ____________________.

Which of the following statements are true of the pleural membranes? (Read carefully and select all of the correct statements.)

Internal respiration is:

The function of pulmonary surfactant is to:

If air at atmospheric pressure were to enter one side of the chest cavity, what would happen?

Oxygen is released from hemoglobin to tissues when the P____________________ is low and the P____________________ is high.

If surfactant were not produced, how would the alveoli be affected?

The function of the epiglottis is to:

The function of the soft palate is to:

The external intercostal muscles pull the ribs:

The palatine tonsils are ____________________ tissue and are on the lateral walls of the ____________________.

In internal respiration, the PCO₂ in the blood is ____________________, and the PCO₂ in the tissues is ____________________.