Task 5.Translate the given sentences into Russian, close you books and translate them back into English.

1. All medical students must know the structure of the human body perfectly well.

2. The bones of various sizes and shapes give firm but flexible support to the soft tissues, muscles and organs.

3. The ear includes 3 main parts: the external ear, the middle ear, the internal ear. In the mouth there are 2 jaws with teeth, the tongue and the palate.

4. The trunk is divided into two cavities.

5. The principal organs of the lower (abdominal) cavity are the stomach, the liver, the spleen, the gall-bladder, the kidneys, the bladder and the intestines.

6. The vertebrae are divided into the cervical, thoracic, lumbar, sacral vertebrae and the coccyx.

7. The chest (thorax) is composed of 12 thoracic vertebrae, the breastbone and 12pairs of ribs.

8. The parts of the lower extremity are: the thigh (hip), the leg and the foot.

9. The bones of the skeleton are connected together by the joints or by the cartilages and ligaments.

10. The skeleton is covered with more than 400 muscles.

11. The skin is the upper layer of the skeleton (body).

12. The vital activities of the cells, tissues, organs and the whole organism are based on metabolism.

Task 6. Retell the text.

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