Jawapan

2015-03-24T18:25:53+08:00
Terpotong? Mksud, dia punya keratan rentas ke? Artery ni, dia punye saiz LUMEN KECIL and OTOT dkt tpi dia msti TEBAL sbb artery nk bwk darah yg ada oxygen (oxygenated blood) ke seluruh sel badan manusia. Manakala, vein.. die punye saiz LUMEN BESAR and OTOT dkt tpi lumen KECIL sbb dia xyh bwk drh yg ada oxygen. Vein bwk drh yg dh TAKDE OXYGEN (deoxygenated blood) dri sel badan manusia ke jantung. Nk fhmkn lgi, artery bwk oxygenated blood from heart to body cell, pstu bri oxygen dkt cell, darah yg xde oxygen tu akn dibawa balik ke heart mlalui vein, dan seterusssnyyaaa...