Exam 19: Respiratory System

Max works out about an hour every day, using aerobic machines at a gym. During his moderate physical exercise, blood concentrations of

The bronchus and blood vessels enter a lung through the _______.

The pharynx functions as a ______, whereas the larynx functions as a ______.

The layer of serous membrane that is firmly attached to the surface of a lung is called ______ ______.

The organs of the upper respiratory tract are located outside the thorax.

The trachea

Emphysema results in

The greatest amount of carbon dioxide transported in the blood is in the form of dissolved carbon dioxide.

The vocal cords are in the

Carbon monoxide is toxic because it destroys respiratory areas in the brain.

The walls of the alveoli are composed of

Breathing rate increases during exercise due to

Of the respiratory air volumes listed, which one has the largest volume?

In October 2001 at the site of the World Trade Center in New York City, fires were still burning from the terrorist attacks that had brought down the buildings. The greatest danger to the respiratory system was

During an asthma attack, the patient usually finds it most difficult to

In tuberculosis

Air entering the potential space of the pleural cavity is called

Ordinary air is about 21% oxygen and 0.04% carbon dioxide.

Breathing functions to

The partial pressure of oxygen that stimulates the respiratory areas is ___ of normal.