Izicubu womuntu

izicubu womuntu isakhiwo lamaseli nezidalwa extracellular, ngokomlando. isakhiwo ngasinye onezici ezithile morphological futhi zisebenza kahle ukuthi acace kukho. Emzimbeni uxhumana zonke izicubu womuntu. Lokhu kunikeza ubunye morphological futhi zisebenza kuwo.

Izinhlobo izicubu womuntu

Kukhona izinhlobo ezine cell izakhiwo. Emzimbeni kukhona EPITHELIAL, abakaze, imisipha kanye ezicutshini.

Border (EPITHELIAL) isakhiwo yakhiwa amaseli EPITHELIAL abami ebusweni izimbotshana umzimba kanye ulwelwesi lwamafinyila kwezitho zangaphakathi emzimbeni futhi yakha indlala kanye uketshezi kwangaphakathi futhi yangaphandle.

Amaseli we izicubu womuntu EPITHELIAL ezazigudla mucosa, asezindaweni ulwelwesi engaphansi. Ebusweni engaphakathi lesi sendlalelo imvelo yangaphandle ubhekene ngqo. Yokudla ijwabu EPITHELIAL Kwenziwa okusheshayo oksijini izinto ngokusebenzisa ulwelwesi engaphansi imithambo yegazi.

Kuye ukuma cell libhekwa flat (isikhumba), cylindrical (emathunjini), cubic (capsule kwezinso glomerulus) ungqimba. Kuye inani izingqimba ukuhlukanisa olulodwa futhi multilayer Indwangu. Uma wonke amaseli e isakhiwo ulwelwesi kufinyelelwa, kuba epithelium olulodwa-egqinsiwe. Lapho amaseli ulwelwesi-eboshiwe umugqa owodwa, ngesikhathi omunye bakhululekile, kuba - a epithelium multilayered. A olulodwa-ungqimba EPITHELIAL izicubu kungaba olulodwa-core noma multi-core. Lokhu kuncike ezingeni lapho nuclei kuto. Kwezinye izimo ekhona isakhiwo zibheke zangaphandle imvelo ciliary cilia.

isakhiwo zahlukahlukene kakhulu we ezicutshini human. Nokho, bonke ezahlukeneyo zalo akhiwa mesenchymal (maphakathi lwegciwane ungqimba). Ngokuxhuma isakhiwo kumele labizwa ngokuthi lunemicu cartilaginous, isimiso se-lymph, izicubu hematopoietic negazi. Konke lokhu zilwane basonta isakhiwo engaphakathi ophansi.

Igazi iqukethe izinto eyakheke: zegazi, emangqamuzaneni egazi amhlophe, amangqamuzana egazi abomvu. Ngaphezu kwalokho, it has a plasma ketshezi. kukhona ama-hormone, emizimbeni mzimba, izakhi yi-plasma. Ngo umnkantsha (obomvu) kuyinto izicubu hematopoietic. E-lymph, le mucosa emathunjini, isibindi, ubende, i-thymus isakhiwo lymph itholakala kanye nezinye izitho.

Zezinzwa izicubu fibrous isakhiwo, ngaphandle sezitokisi, bese zihlanganisa ezinye izici. Bona, ikakhulukazi, ibonisa eliphakathi nendawo amelwe ifomu collagen, mithambo ine-elastin, argiofilnyh yemisipha reticular zazo ebiyelwe asendabeni isizinda.

Zonke izicubu kanye izitho abakhona zezinzwa izicubu zesivikelo sesifuba. Noma kunjalo, kuthiwa kakhulu lapho kukhona umthwalo omkhulu lokukhanda.

Isakhiwo ithambo ethanjeni amaseli samanje. Sinenkosi akwazi ukwakha inhlobo eliphakathi nendawo, okubandakanya nosawoti wamaminerali kanye zezinzwa izicubu zesivikelo sesifuba.

Isakhiwo cartilaginous ihlukaniswe hyaline, nokunwebeka kanye fibrocartilage. Ngo fibrocartilage chondrin iqukethe imali eyanele collagen ethandele ukungadluliseli amandla uqwanga. I nokunwebeka uqwanga chondrin ungqimba ngaphandle collagen imicu enwebekayo yezicubu yakhiwa uqwanga amaseli, kanjalo has ngezinga elithile kuyaqina. Hyaline isakhiwo ngokwanele aminyene, kodwa ngaphansi oqinile ngokuziqhathanisa nomunye.

Ukuze imisipha womuntu izicubu zihlanganisa imisipha yenhliziyo, bushelelezi yemisipha striated. Ngenxa yalesi sakhiwo, ukunciphisa Kwenziwa ka imithambo yegazi, izitho zangaphakathi kanye ukunyakaza izitho zomzimba. Ukuncishiswa imisipha striated kwenzeka ngentando yomuntu. imisipha senhliziyo yemisipha bushelelezi kufakwe nokwakheka kwezitho zangaphakathi. Abawalaleli izifiso umuntu.