Uhlelo lymphatic lomuntu luyingxenye yesimiso senhliziyo. Idlala umsebenzi obalulekile ekuhlanjululeni izicubu zomzimba nakwe-metabolism. Ngokungafani negazi, le ngxenye ayivaliwe futhi ayisebenzisi ipompo ephakathi yokuhamba kwayo. Leli ketshezi lihamba kancane ngaphansi kwethonya elincane.
Ukwakhiwa kwesistimu ye-lymphatic yomuntu
Le ngxenye yomzimba iqukethe:
- izitsha ezihambelanayo nama-capillary lapho kuhamba khona amanzi;
- Ama-lymph nodes abandakanyekayo ekuhlungeni;
- amadoksi amabili lymphatic;
- i-liquid kuphela ejikeleza emzimbeni.
Ngaphezu kwalokho, izitho zesistimu ye-lymphatic yomuntu zihlanganisa i-thymus, amathoni kanye ne-spleen.
Ngokuhlukile kuyadingeka ukuthi usho ngesakhiwo se-lymph node. Yenza imisebenzi ebalulekile, ikakhulukazi enqunywa isakhiwo. Ngakho, lesi sici sesistimu sinezicubu ze-lymphoid. Iphinde iboniswe ngesimo samaseli e-plasma nama-reticulocytes. Kule ndawo yesistimu ukuthi inani le-B-lymphocytes landa, okuthuthukisa izinga lokuzivikela . Ngesikhathi sokuguqulwa okuqhubekayo, zikhiqiza ama-antibodies.
Phakathi node ngayinye enjalo kunezintambo ze-T, ezithi uma zixhumana no-antigen, zinehlukaniso ethile. Ngakho-ke, lezi zakhi zomzimba zibamba iqhaza ekusungulweni kwegciwane lesandulela ngculaza.
Ngaphezu kwalokho, kubalulekile ukukhuluma ngokubunjwa kwe-lymph. Lezi zitshalo ziyingxenye yezicubu ezixhunyiwe. Iqukethe izilonda nezixazululo ze-colloidal zamaphrotheni ezinika i-viscosity. Ukubunjwa nakho kunamafutha amaningi. Leli ketshezi lifana kakhulu ne-plasma yegazi.
Emzimbeni womuntu ngamunye kufinyelela kumalitha ama-lymph amabili. Ukunyakaza kwalo kwenzeka ngokusebenzisa izitsha ngenxa yokuqhekeka kwama cell muscle ezindongeni. Inendima ebalulekile kule ndaba idlalwe ngumsebenzi wemisipha, ukuphefumula kanye nesimo somzimba wonke.
Imisebenzi yesistimu ye-lymphatic yomuntu
I-lymphatic system, nakuba kubonakala sengathi ekubonweni kokuqala akubalulekile njengendlela yohlelo lwe-nervous or circulatory, noma kunjalo lidlala indima ebalulekile ekusebenzeni kahle komzimba ngamunye:
- Into esemqoka eyenzayo iqinisekisa ukuphuma kwamanzi amaningi kanye nezinto ezisuka esikhaleni se-intercellular. Konke lokhu kungena emithanjeni yegazi.
- Ukuvikelwa komzimba ngokumelene nezinsizakalo ezingaphandle kwamanye amazwe nezinto ezingavamile. Ezingxenyeni zalesi simiso, ezinye izinto ezingalimaza umuntu ziyashesha. Lezi zakhi zisebenza njengezihlungi zemvelo.
- Ukuqhathaniswa kwama-immunity cells. Lapha, ama-leukocyte akhethekile akhiwa, okuyinto engena egazini. Uma kunesidingo, zikhiqiza ama-antibodies ezibopha futhi azinciphise ama-microorganisms angaphandle.
- Enye ingxenye enkulu yesistimu ye-lymphatic yomuntu iyisizo ekuthandeni amafutha. Ama-proteine nama-carbohydrates angena ohlelweni lokujikeleza emathunjini. Futhi amaningi amafutha ayangena ngqo emikhumbi ye-lymphatic. Ngaphezu kwalokho, ngeketshezi elihambelanayo, basevele begazini.
- Ukuthutha kwamaprotheni amakhulu emaceleni amasha. Izakhi ezinkulu azikwazi ukungena ngaphakathi kwe-capillary kusuka esikhaleni se-intercellular. Futhi kumele kube khona ohlelweni lokujikeleza - lokhu kubalulekile ekusebenzeni okufanele. Amaprotheni amakhulu avela egazini ngenxa ye-lymph, ngoba ama-capillaries ahambisana nalesi simiso akwazi ukweqa izakhi ezidingekayo.
Kubalulekile ukuthi uguquguquko luhamba njalo, futhi noma kunjalo, ungavumeli ukulimala. Iphuzu eliphelele ukuthi uma i-lymph ihamba kancane kancane emzimbeni, ingabangela ukuvuvukala okungathí sina kwama-node , okuzodinga ukususwa.