pleura [`plΩərə] n plevra;
lobe [lзΩb] n bo’lak;
external [eks`tз:rnl] a tashqi;
serous [ `siərəs] a seroz;
lateral [`lætərə] a yon bosh;
visceral [`vIsərəl] a ichki;
subserous [s/\b`Iərəs] a seroz osti.
II. Quyidagi so’z va so’z birikmalarini yod oloing:
cover [`k/\və] v qoplamoq, yopmoq;
vary [`vεərI] v o’zgarmoq, turlanmoq, farqlanmoq;
shape [`eIp] n shakl; ko’rinish;
heavy [`hevI] a og’ir, zich;
border [`bo:də] n chegara;
left [left] a chap;
extend [Iks`tend] v kengaymoq; kattaymoq;
capacity [kə`pæsItI] n sig’im, hajm;
vital capacity of the lungs [`vaitəl kə`pæsiti əv ðə lΛŋz] o’pkaning tiriklik sig’imi;
upward [`/\pwəd] prep yuroriga;
above [ə`b/\v] prep tepa, ostida;
infant [`nfənt] n go’dak (ikki yoshgach bo’lgan bola);
level [levl] n sathi; miqdor;
pale [peIl] a rangziz;
thin [θIn] a yupqa, ingichka;
colour [`k/\lə] n rang; v bo’yamoq;
proper [`propə] a xususiy; tog’ri; o’ziga xos, monand.
III. 1. Tekst C ni o’qing. 2. Undagi Present Participle ishtirok etgan gaplarni toping va tarjima qiling. 3. Tekstga oid beshta savol tuzing. 4. Ouyidagi so’z birikmalarining ingliz tilidagi ekvivalentini yozing:
sathidan, har ikki tomonda, katta yoshdagi erkak kishilarda, go’daklarda, bir-biridan, shakli bo’yicha
The C. The Lungs
The lungs are the main organs of the respiratory system. There are two lungs in the human body located in the lateral cavities of the chest. The lungs are separated from each other by the mediastinum. The lungs are covered with the pleura. They are conical in shape. Each lung has the base, apex, two borders and three surfaces.
The lung has the apex extending upward 3-4 centimeters (cm) above the level of the first rib.
The base of the lung is located in the convex (bo’rtgan) surface of the diaphragm.
The posterior borders of the lungs are on each side of the spinal column. The anterior border is thin and overlaps (to’smoq) the pericardium.
The weight of the lungs varies according to many conditions. In the adult male the weight of the lungs is about 1.350 gr. The right lung is about 15% heavier than the left one. The vital capacity of the lungs is 3.5-4 liters in the male and it is 3-3.5 liters in the female.
The right lung consisting of three lobes is heavier than the left one because the latter consists only of two lobes. The lower lobe of the left lung is larger than the upper one.
In infants the lungs are of a pale rose colour, but later they become darker.
The structure of the lung consists of an external serous coat, the visceral layer of the pleura, a subserous elastic tissue and the parenchyma or proper substance of the lungs.
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