Yuav ua li cas yog cov kev khiav dej num ntawm lub circulatory system?

Ntshav thiab lwm yam cev tsis muaj kua xws li cov qog, thiab cov ntaub so ntswg kua, roos lub internal ib puag ncig. Ntshav yog ib tug tshwj xeeb zoo ntawm connective ntaub so ntswg, vim hais tias ntawm phylogenetically thiab tsim nws yog tsim los ntawm chav nyob embryonic connective cov ntaub so ntswg - mesenchyme. Lub circulatory system yog ib tug network ntawm cov hlab ntsha thiab lub plawv muaj kab noj hniav, uas muaj ib tug tsis tu ncua thiab tas mus li kev ntawm cov ntshav. Li cas rau cov circulatory system? Nyob rau hauv teb lo lus nug no, koj yuav tau sau ib treatise, vim hais tias cov kev ua ntawm cov circulatory system yog ntau yam. Qhov no thauj ntawm tseem ceeb heev tshuaj thiab biologically active sib txuas uas muab lub hwj chim thiab ntxiv kev loj hlob ntawm tag nrho cov hlwb thiab cov nqaij mos ntawm cov tib neeg lub cev, nws tseem ceeb heev nkev pauv hauj lwm yog ua kom muaj tus osmotic siab thiab protein fractions, circulating nyob rau hauv cov hlab ntsha. Rau cov tib neeg circulatory system zog kuj koom ib tug txaus tus ntawm sab nraud thiab sab hauv yam tseem ceeb ntawm lub cev lo lus teb uas yuav tiv thaiv lub cev los ntawm cov kab cov kab mob thiab lwm yam txawv teb chaws alien txhua tej neeg hais.

Lub circulatory system yog tsis muaj peev xwm mus rau qhov chaw yog hais tias nws twb tsis yog rau cov tsis tu ncua, mus thoob plaws hauv lub neej ntshav txaus, hu ua extracorporeal ncig. Lub plawv nrog countless cov hlab ntsha (loj cov hlab ntsha, cov leeg, arterioles, cov hlab ntsha thiab venules), thiab lymphatic system roos ib zaug xwb vascular system ntawm tib neeg lub cev. Lub zog ntawm cov circulatory system muaj tshem cov khoom ntawm oxidation thiab lwm yam tshua uas tshwm sim nyob rau hauv tus txheej txheem ntawm metabolism, uas ua heev txaus ntshai thiab lom rau lub cell hais, yog hais tias lawv tsis tas eleminirovat. Lub Khoos Loos Tsev ntsiab ntawm cov ntshav tsim humoral kev cai , thiab muab ua kom tiav tswj cov kev ua ub ntawm tag nrho cov hauv nruab nrog cev thiab txhua tus ntawm lub tshuab.

Ntshav, raws li ib tug cov ntaub ntawv uas substance circulatory system muaj ob qhov chaw: ib tug ua kua, los yog ntshav, raws li zoo raws li qhuav qaib dib tsim ntsiab (platelets, leukocytes thiab erythrocytes). Qhov ratio ntawm cov zauv feem nyob rau nruab nrab yog 1: 1.5, thiab yus tus kheej li 40% feem pua ntshav thiab corpuscles 60% tag nrho cov ntshav. Ntshav (kua feem) yog ib tug heev thiab cim lom nruab nrab, 90% ntawm cov uas yog cov dej. Qhov seem 10% ntawm cov ntshav tshwm sim nyob rau hauv cov nqaijrog, amino acids, mineral ceg, qabzib, tsis systems, cov tshuaj hormones, yaj gases, vitamins, enzymes, thiab lwm yam

Cov nuj nqi ntawm lub circulatory system kom muab humoral tiv thaiv txuam nrog cov ntshav ntshav. Txog rau lub tsim ntsiab yuav tsum tau hais tias lawv muaj peb sib txawv heev zog: los ntawm cov ntshav liab - ua tsis taus pa, nyob rau hauv leukocytes - Tiv nyob rau hauv platelets - txhaws.

Cov ntshav liab muaj ib qho tseem ceeb hlau-muaj xim, hu ua hemoglobin. Nws induces cov thauj ntawm cov pa los ntawm cov sab nraum cua mus rau lub hlwb, thiab hlwb ntawm cov pa roj carbon dioxide yog tso zis rau cov sab nraud ib puag ncig. Muaj ntau ntau yam ntaub ntawv ntawm cov ntshav dawb, thiab txhua tus ntawm lawv muaj ib tug tseem ceeb heev ua hauj lwm. Lawv tsim cell-kho hom haum xeeb kev tiv thaiv, nyob rau hauv lawv cov nyiaj tsawg tsim yus pathological mob, ib tug piv txwv notable ntawm uas yog tus kab mob HIV. Txhaws muaj peev xwm thiab aggregation zog xam qhovkev xwb nyob rau hauv platelets, nws tsis muaj peev xwm ua rau tsis meej los ntshav, ob qho tib si sab nraud thiab nrog, thiab cov dhau heev lawm yuav ua rau cov ntshav txhaws uas txhaws cov lumen ntawm cov hlab ntsha thiab thaiv lub cev ndlwg ntawm cov ntshav.

Txawm tus muaj nuj nqi ntawm lub circulatory system, nws lub luag hauj lwm nyob rau hauv tib neeg lub neej yog undeniable.