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Smoking can damage your lungs and here's how: when a person breathes in cigarette smoke, he or she breathes in hundreds of chemicals including tar, nicotine, hydrogen cyanide, and arsenic. Tar will remain inside the air ways and paralyze the millions of tiny hairs (cilia) that line your lungs and sweep out any dirt and genns that you breathe in. A single cigarette can stop cilia from moving for 20 minutes or more.

— Problem questions.

1. What do you think of people who smoke?

2. Do you consider it cool or simply a bad habit?

3. Has the attitude to smoking changed in our country over the past few years? What has changed?

4. Why do you think the number of smokers is increasing?

5. Is it possible to change the situation about smoking? How?

6. Solve the anatomical crossword puzzle.
Across

1. The process of inspiration and exhalation.

2. The tube which passes the food and air.

3. The part of the lungs.

4. Smth which envelopes each lung.

5. Air reaches the larynx then...

6. It is located in the pharynx.

7. You do it when you breathe.

8. The voice box.

9. It separates the thoracic cavity from the abdominal.

Down

The substance, which you inspire every moment.

The process of breathing.

The smallest vessels in our organism.

The blood absorbs the oxygen from the alveoli and gives this gas away.

Your neck, especially the front part.

Each bronchial has it.

A mucous membrane and... warm and moisten the air and filter out foreign bodies.

The bronchial branches are called...

The process of breathing occurs in the...

Date: 2015-09-18; view: 439; Нарушение авторских прав