Amapayipi ensimbi yensimbi engenamthungo enziwe ngeziyingo zensimbi noma amabhilidi aqinile ngokubhobozwa ukuze enze ama-capillaries, abe esegoqwa ashisayo, agoqelwe ngokubanda noma adonswe ngokubanda.Ipayipi lensimbi elingenamthungo lidlala indima ebalulekile embonini yezwe lami yamapayipi ensimbi.Ngokwezibalo ezingaphelele, bangaphezu kuka-240 abakhiqizi bamapayipi ensimbi angenamthungo ezweni lami, amasethi angaphezu kuka-250 amayunithi epayipi lensimbi engenamthungo, kanye namandla okukhiqiza onyaka angaba amathani ayizigidi ezi-4.5.Ngokombono wobubanzi, <φ76, ibalwa ku-35%, <φ159-650, ibalwa ku-25%.Mayelana nezinhlobonhlobo, amapayipi enhloso ejwayelekile angamathani ayizigidi eziyi-1.9, alinganiselwa ku-54%;amapayipi kawoyela angamathani ayi-760,000, alinganiselwa ku-5.7%;ama-hydraulic strut namapayipi anemba angamathani ayi-150,000, okubalelwa ku-4.3%;amapayipi angenasici, amapayipi anamanzi, namapayipi ezimoto ingqikithi yamathani angu-50 000.amathani, okubalelwa ku-1.4%.