Ntchito ndi kapangidwe ka nephron ndi

Nephron si kapangidwe waukulu komanso zinchito aimpso unit. N'kumene ndi magawo lofunika kwambiri la mapangidwe mkodzo. Choncho, zomwe zikuwoneka ngati kapangidwe ka nephron, nanga umagwira ntchito izo anachita, adzakhala chidwi kwambiri. Komanso, makhalidwe a nephrons uziyenda atha kufotokozera mokoma dongosolo aimpso

Kapangidwe ka nephron kuti: aimpso corpuscle

N'zochititsa chidwi kuti mu impso okhwima a munthu wathanzi ndi pakati 1 biliyoni ndi 1.3 nephrons. Nephron - ndi zinchito ndi structural botolo la impso, amene tichipeza corpuscles aimpso ndi otchedwa kuzungulira wa Henle.

Nkosafuna aimpso corpuscle tichipeza glomerulus Malpighian ndi Bowman a kapisozi - Shymlanskaya. Choyamba ndi Dziwani kuti mpira kwenikweni mndandanda wa capillaries yaing'ono. Magazi afika mwa mtsempha wamagazi pano prinosnuyu - ndi osasankhidwa plasma. Kusamala m'magazi kotengedwa arterioles efferent.

The kapisozi a Bowman - Shymlanskaya tichipeza mapepala awiri - mkati ndi kunja. Ndipo ngati pepala akunja ndi nsalu wamba a epithelium squamous, kapangidwe ka pepala mkati kuliganizira kwambiri. The gawo lamkati la kapisozi aphimbidwa podocytes - ndi maselo kukwaniritsa udindo wa fyuluta zina. Iwo kuphonya shuga, amino zidulo ndi zinthu zina, koma kuteteza kayendedwe ka tinthu lalikulu mapuloteni. Choncho, corpuscle ndi aimpso anapanga mkodzo chachikulu, chimene chiri chosiyana ndi madzi okha, pakalibe mamolekyulu lalikulu.

Nephron: dongosolo la tubule proximal ndi kuzungulira wa Henle

Proximal tubule ndi gulu limene limalumikizana ndi corpuscle aimpso ndi kuzungulira wa Henle. Mkati tubule ali villi, omwe amaonjezera malo onse a lumen mkati, potero kukula ntchito kukonzanso mayamwidwe.

Proximal tubule bwino mu gawo kunsi kwa kuzungulira wa Henle, amene amakhala ndi awiri ang'onoang'ono. The kuzungulira ndi adatchithisira mu medulla kumene anaŵerama padziko olamulira yake ndi madigiri 180 ndipo akukwera - apa akuyamba kukwera mbali ya kuzungulira Henle, amene ali wokulirapo ndipo moyenera, m'mimba mwake. Kutuluka kuzungulira atagona pafupifupi mlingo wa glomerulus lapansi.

Kapangidwe ka nephron ndi: ndi tubules wapotalikira

Mbali kotulukira kuzungulira wa Henle mu kotekisi zipita otchedwa wapotalikira convoluted tubule. Iye abwera kukhudzana ndi mpira ndi pokhudzana ndi prinosnoy kunja ndi arterioles. Pali anachita mayamwidwe amalire zakudya. Wapotalikira tubule akudutsa mu gawo lomaliza la nephron, amene nawonso amalowa yosonkhanitsa chubu, chotengera madzimadzi mu mafupa a chiuno ndi aimpso.

gulu la nephrons

Malinga malo lagawidwa mitundu itatu waukulu nephrons:

• nephrons yokhudza kotekisi zimapanga pafupifupi 85% ya okwana mayunitsi onse kandalama impso ndi. Monga ulamuliro, iwo zili kotekisi akunja aimpso, lomwe Ndipotu umboni ndi dzina lawo. Nephron Kapangidwe ka mtundu umenewu kusiyana pang'ono - ndi kuzungulira wa Henle ndizochepa;
• juxtamedullary nephrons - nyumba amenewa basi pakati pa ubongo ndi wosanjikiza yokhudza kotekisi, ndi kuzungulira yaitali Henle amene angatithandize kwambiri mu medulla, nthawizina kufika mapiramidi;
• subcapsular nephrons - dongosolo, amene anakonza mwachindunji pansi kapisozi a.

Mwina ananena kuti kapangidwe ka nephron ndi kwathunthu mogwirizana ndi ntchito zake.