The polynuclear na- sel ọcha (ma ọ bụ leukocytes), ya mere sel nke na -agbachitere ahụ.

E nwere ụdị mkpụrụ ndụ ọbara ọcha dị iche iche, gụnyere:

• na polynuclear, nke akpọrọ aha n'ihi na ọ dị ka ha nwere ọtụtụ nuclei
• na ndị na -agụ akwụkwọ, nke gụnyere "monocytes"Na"lymphocytes«

Mkpụrụ ndụ polynuclear bụ sel nke na -ekesa n'ọbara na nke nwere oghere nwere ọtụtụ ihe. N'ime ha, ha nwere “granulations”, nke na -acha na agba dị iche iche mgbe ejiri agba pụrụ iche tee ya. Ya mere, anyị na -aghọta:

• neutrophils, nke oke ya na-ejigide ihe akpọrọ ihe na-anọpụ iche (agba aja aja)
• eosinophils, nke nnukwu onyinye ya na -atụgharị oroma
• basophils polynuclear, nke nwere nnukwu granul purplish-red

Mkpụrụ ndụ mkpanaka ndị a na -aga saịtị n'ime ahụ ebe enwere ọrịa ma ọ bụ mbufụt. Mbugharị a na -ewere ọnọdụ n'okpuru mmetụta nke ụmụ irighiri mmiri kemịkalụ nke nje na -ebute ma ọ bụ bute ya, nke na -adọta ha n'ebe kwesịrị ekwesị.

Polynuclear neutrophils bụ ọtụtụ sel polynuclear: ha na -anọchite anya imirikiti sel ọbara ọcha na -ekesa n'ime ọbara (50 ruo 75%). Dị ka ihe na -egosi, ọnụọgụ ha na -agbanwe site na 1,8 ruo 7 ijeri kwa lita ọbara (ya bụ 2000 na 7500 neutrophils kwa mm.³ nke ọbara).

N'otu oge n'ime anụ ahụ butere ọrịa, neutrophils na -enwe ike 'phagocytize' (ya bụ, ilo, n'ụzọ) ụmụ irighiri ihe.

A na -atụ aro ịlele oke ọbara ọcha n'ozuzu n'ọtụtụ ọnọdụ, ọkachasị n'ihe gbasara ọrịa.

Ọtụtụ mgbe, dọkịta na -edepụta “ọnụọgụ ọbara” (hemogram) nke na -akọwa mkpokọta mkpụrụ ndụ ọbara dị iche iche.

Nnyocha ahụ na -enwe obere nlele ọbara venous, nke a na -emekarị n'ogwe ụkwụ. Ọ dịghị mkpa ịnọ na afọ tọgbọ chakoo.

Anyị nwere ike ịhụ ka mkpụrụ ndụ polymorphonuclear dị n'okpuru microscope, site na nyocha ọbara.

Enwere ike ịba ụba nke neutrophils polynuclear (polynucléose neutrophile) ma ọ bụ na -agbada ala ma e jiri ya tụnyere ụkpụrụ (neutropenia).

Enwere ike ịhụ mmụba dị ntakịrị ma ọ bụ nkọ na ọnụ ọgụgụ mkpụrụ ndụ ọbara ọcha, yana ọkachasị polymorphonuclear neutrophils, n'ọtụtụ ọnọdụ:

• ọ bụrụ na 'ọrịa (ọtụtụ nje na -efe efe)
• ka nke ọrịa mkpali
• n'ihe banyere ụfọdụ c
• banyere ọrịa hematological (ọrịa myeloproliferative, leukemia, polycythemia, thrombocythemia).

Mbelata nke neutrophils ga -ekwe omume:

• mgbe ụfọdụ nje nje
• mgbe na -ewere ụfọdụ ọgwụ
• mgbe otu chemotherapy
• kamakwa na ụfọdụ ọrịa ọkpụkpụ azụ (myeloma, lymphoma, leukemia, kansa).

Nkọwa nsonaazụ ga -adabere n'ụkpụrụ ọbara ndị ọzọ yana afọ onye ọrịa, akara, na akụkọ ihe mere eme.