Respiratory System

Go to this link, Read the article about the respiratory system on page 2, and answer the exercises on pages 2 and 3.



Click on the Pulmonary Edema Transcript (a word document will download), read the text and answer the following questions:

TRUE OR FALSE (If the answer is false, correct the sentence)

1. Pulmonary Edema is caused by an accumulation of fluid in the interstitial space between capillaries and lung alveoli. The net effect is hypoxia.
2. With regard to pulmonary edema the only diffusion factor that changes is diffusion distance.
3. As the distance between pulmonary and capillary blood and the alveolar wall increases the rate of diffusion of oxygen and carbon dioxide also increases.
4. In the cardiogenic pulmonary edema there is a decrease in the pulmonary capillary hydrostatic pressure.
5. Normally there is a net inward force across the pulmonary capillary wall.
6. Pulmonary edema tends to develop rapidly because of specific anatomical differences in the vascular system of pulmonary circulation.
7. In general, treatment is directed at 1) increasing pulmonary hypertension and 2) reducing oxygenation of tissues.
8. By breathing higher partial pressures of oxygen, the diffusion gradient between alveolar and pulmonary capillaries is increased, this facilitates increased diffusion of O2 into the blood.

TEYour Name Partial 3 WP4