Njengoba ingxenye ewuketshezi yegazi ebizwa?

Khumbula, njengoba ingxenye ewuketshezi yegazi ngokuthi: abomvu egazi, oketshezini olungenambala olusegazini noma lymph? Kunzima ukuphendula? Khona-ke masikhumbule ndawonye.

Kuyini igazi

Hard ukukholelwa, kodwa igazi - a uhlobo ezicutshini. Futhi kulula ngokwanele ukufakazela. Igazi liqukethe ingxenye liquid yeseli igazi. Eyokuqala kungukuqiniseka intercellular. Its impela eningi, ngakho yonke yangaphakathi imvelo kwezicubu kukhona okuxekethile yisisekelo emzimbeni. A egazi - namangqamuzana atholakala kuwo. Babuye ngokuthi izakhi kwakhiwa.

Plasma uketshezi imvelo yangaphakathi

Le ngxenye liquid igazi ngokuthi plasma. isimo Its wokuhlanganisa futhi izakhiwo ngokomzimba zinquma umsebenzi walolu hlobo ihlule. Lo luketshezi ophuzi, okuyinto has a viscosity abalulekile ngenxa yokubakhona therein amaprotheni corpuscles. isabelo sayo egazini imayelana 60%.

Simondzawo intérieur - igazi, izindlala zamanzi, uketshezi interstitial. Amanzi yisimo ezidingekile okuvela eziyinkimbinkimbi zamakhemikhali izinqubo zamagama kanye cleavage amanxusa kanye ezokuthutha yabo ngokusebenzisa umzimba.

I amakhemikhali ukwakheka plasma

Le ngxenye liquid igazi ngokuthi plasma futhi nemiyo intercellular. 90% liqukethe amanzi. Ngakusasa kulandele iphesenti amaprotheni, izinga zazo ifinyelela ku-8%. Lokhu fibrinogen albumin globulin. Lezi amaprotheni ukuhlinzeka amanzi exchange futhi hormone amasosha omzimba zithutha humoral alawule ingcindezi osmotic.

Kakhulu kangakanani-plasma yegazi nezinye izinto eziphilayo. Amakhabhohayidrethi bakha 0.12% ngisho kancane fat - 0.7%.

Mineral izingxenye plasma ethulwa nosawoti. Lezi izinto kukhona khona ngesimo izinhlayiya icala. Lokhu cations sodium, magnesium, i-potassium, i-calcium, lensimbi nelethusi. Ukuze izinhlayiya omubi icala kukhona khona izinsalela chloride, carbonate, wali band nezinye acid yezimbiwa. A indima ekhethekile phakathi kwalezi izinto okungezakho isixazululo bokuphila. Okuqukethwe kwalo yi-plasma uhlale ezingeni njalo. Lokhu Isixazululo sodium chloride emanzini, lapho emakamu Usawoti 0.9%. Endabeni ukulahlekelwa igazi lisetshenziselwa kuncishiswe umthamo yayo adingekayo. Lokhu kubaluleke kakhulu ikakhulukazi ezimweni lapho akunakwenzeka ukusungula iqembu futhi RH isici umuntu odinga usizo lwezokwelapha.

egazi

40% of the igazi umthetho izakhi okwenyanga ifomu ngamunye esibonakala by isakhiwo athile kanye nemisebenzi. Ngokwesibonelo, abomvu egazi ashaye - red biconcave disc ukuma. Lezi amaseli yenuzi-mahhala futhi aqukethe e-hemoglobin. The main umsebenzi kwamangqamuzana egazi abomvu kuyinto exchange igesi. Bona ukuthutha umoya-mpilo kusuka emaphashini kuwo wonke amangqamuzana omzimba, kanye carbon dioxide ohlangothini reverse.

Leukocyte kukhona kungekho nto enemibala emihle amaseli nucleated ezingenakho ukuma njalo. Basuke izimpawu ukunyakaza amoeboid. Kanjalo iwukudambisa Amagciwane ngu phagocytosis izinhlayiya babambeke igazi bese bakha amasosha omzimba womuntu.

Ama-platelet I baphathe igazi ekunqandeni. Lokhu imikiswe amapuleti kungekho nto enemibala emihle. Ngosizo lwabo eyenziwa enzymatic amaprotheni ukuguqulwa eyinkimbinkimbi fibrinogen ku injalo zingaxazululeki. Ngenxa yalokho, umzimba ivikelwe kusuka ngokweqile ukopha, okungaba okuyisimo esisongela ukuphila.

umsebenzi wegazi

ukuphila komuntu ngaphandle kwegazi akunakwenzeka. Ngemva plasma (ingxenye ewuketshezi yegazi ngokuthi ngaleyo ndlela) kanye izakhi ifomu ihlinzeka umoya yezinto eziphilayo.

Omunye umsebenzi obalulekile ukunikeza amandla. Ngemva udaba eziphilayo ivela isiteshi sokugaya ukudla bungene egazini, okuyinto vele kwenzeka ababezihambisa kuwo wonke amangqamuzana. Njengoba i-plasma kuyinto aqueous, khona uhlanganyela ekugcineni homeostasis futhi izinga lokushisa komzimba njalo. Ngu imisebenzi ayisivikelo igazi Ungahlanganisa ukusonga kanye kumiswa amasosha omzimba.

Ngakho, ingxenye ewuketshezi yegazi ngokuthi plasma. Kuyinto izidakamizwa intercellular, lapho kukhona izakhi okwenyanga. Ndawonye benza ezokuthutha, zokuphefumula, excretory nemisebenzi zokuphefumula.