SUMMARY

所属栏目:组织学与胚胎学

Bloodconsistsofbloodcellsandbloodplasma,inwhichthebloodcellsaresuspended.Thebloodcellsareerythrocytes(redbloodcells),plateletsandleukocytes(whitebloodcells).Mostmammalianerythrocytesarebiconcavediskswithoutnuclei.Thebiconcaveshapeprovideserythrocyteswitha ......(本文共 1570 字 )     [阅读本文] >>


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