respiratory system

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respiratory system

1. Study the new words ( переписать в словарик. Сделать перевод)

1.
respiratory system –

2.
to bring oxygen –

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to remove carbon dioxide –

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breathing-

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inspiration

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expiration-

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small sacs –

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mediastinum-

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covered by the pleura –

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base –

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apex –

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border –

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surface –

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vital capacity –

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fill with the air –

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absorb oxygen –

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waste product –

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expel from the body –

2. ИЗУЧИТЕ ФУНКЦИИ ДЫХАТЕЛЬНОЙ СИСТЕМЫ

3. Read the text. Translate

The Respiratory System
The respiratory system brings oxygen into the body and removes carbon dioxide. This process is called breathing. It consists of inspiration and expiration. The organs of this system are the nose, pharynx, larynx, trachea and lungs. When you breathe, air travels through your nose, down the trachea, and into bronchi. These bronchi branch into smaller passages called bronchioles and finally into small sacs called alveoli.

The lungs are the most important organs of the respiratory system. There are two lungs in the body. The right lung has three lobes and the left lung has only two lobes. The lungs are separated by the mediastinum and covered by the pleura. They have bases, apexes, borders and surfaces. The average vital capacity is about 3-4 liters.

During inspiration, the alveoli in the lungs are filled with air. It is here that oxygen is exchanged for carbon dioxide. Blood cells absorb oxygen from the capillaries in the alveoli, as carbon dioxide, a waste product, is released back into the lungs from the veins. During expiration, the carbon dioxide is expelled from the body. Oxygen-rich blood then travels to the heart so it can be pumped back to the body where it is needed

4. Study the idiomatic expressions. Learn them

1.
be led by the nose by-идти на поводу

2.
follow one’s nose-идти куда глаза глядят

3.
have a nose for-иметь нюх

4.
look down one’s nose-смотреть сверху вниз

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with one’s nose in the air-задирать нос

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not to see beyond the end of one’s nose- не видеть дальше своего носа

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