Exchange of gases

Exercise 1. Translate the word combinations into your language:

the alveoli of the lungs, the combination of oxygen and hemoglobin, to pass into the blood, the oxygen capacity of the blood, due to the difference of partial pressure of these gases, partial pressure of oxygen in the venous blood, the process of transfer of gases, the medium with a lower partial pressure.

Exercise 2. Answer the questions:

1. Where does the exchange of gases take place?

2. What is the exchange of oxygen and carbon dioxide due to?

3. What is the transfer of oxygen from the atmospheric air into the blood due to?

4. What enables carbon dioxide to pass from the blood into alveolar air?

5. What transfers oxygen into the blood?

6. What is the oxygen capacity of the blood ?

7. How is carbon dioxide transferred?

Exercise 3. Translate the following word combinations into English:

Обмін кисню та вуглекислого газу, переноситися у комбінації з гемоглобіном, місткість кисню, досягати 18-20 мілілітрів на 100 грамів крові, середовище з більш низьким парціальним тиском, завдяки різниці у тисках, дати змогу перейти з крові до альвеолярного повітря, венозна кров, атмосферне повітря, відбуватися в альвеолах у легенях.

Exercise 4. Put questions to the underlined parts of the sentences:

1. The exchange of gases takes place in the alveoli of the lungs.

2. Oxygen passes into the blood.

3. The partial pressure of oxygen in the alveolar air is higher than in the venous blood.

4. The transfer of oxygen from the atmospheric air into the blood is due to this difference of pressures.

5. The process of transfer of gases into the medium with a lower partial pressure is called diffusion.

6. Hemoglobin transfers oxygen into the blood.

7. The oxygen capacity of the blood averages 18-20 milliliters (ml) per 100 g of blood.

8. The combination of oxygen and hemoglobin is called oxyhemoglobin.

Exercise 5. Open the brackets, putting the verbs in the appropriate tense:

1. I knew that they (to wait) for me at the metro station and I decided to hurry.

2. The patient said that he (to experience) never such pain before.

3. The patient said that his teeth (to become) 3 shades whiter.

4. He believed that the new method of treatment (to use) extensively in future.

5. He said that this drug already (to help) him a lot.

6. The boy’s mother said that he (to have) concussion of the brain two years before.

7. I was sure that I already (to make) all necessary analyses.

8. The patient thought that the treatment (to be) effective.

Альвеоли легень

Середовище з низьким парціальним тиском

Завдяки різниці тисків

Ємкість кисню

Двовуглекислі солі

• Where does the exchange of gases take place?

• What is diffusion?

• Who investigated the process of gases exchange in the lungs?

The physiology of the lungs

Exercise 1. Тopic vocabulary:

Associate - зв'язувати

Passage - прохід

Breathe in - вдихати

Breathe out - видихати

Flow - течія

Decrease - зменшуватися

Depth - глибина

Fat - жир, жирний

Amount - кількість

Capacity - місткість

Enable - робити можливим

Dilate - розширюватися

Exercise 2. Translate the following word-combinations into your native language: Physiology of the lungs, exchange of gases, connective tissue, visceral pleura, regulation of the vital capacity of the lungs, the depth of respiration, physiologically active substances, regulation of blood coagulation, lungs dilate, metabolism fats and carbohydrates.

Exercise 3. Answer the following questions:

1. What is the lung?

2. How many lungs does a person have?

3. Where are the lungs located?

4. What is the difference between the right and the left lung?

5. Why is the right lung heavier than the left lung?

6. What is the function of the lung?

Exercise 4. Read and translate the text: