Aiki da tsarin da nephron

Nephron ne ba kawai da babban tsarin amma kuma aikin koda naúrar. A nan ne ne mafi muhimmanci matakai na samuwar fitsari. Saboda haka, bayanin da kama da tsarin da nephron, da kuma abin da ayyuka shi aikin, zai kasance da ban sha'awa sosai. Bugu da ƙari, cikin halaye na aiki nephrons iya bayyana da nuances na koda tsarin

A tsarin da nephron: koda corpuscle

Yana da ban sha'awa cewa a cikin balagagge koda na da lafiya mutum ne tsakanin 1 da kuma biliyan 1.3 nephrons. Nephron - wani aikin da kuma tsarin naúrar na koda, wanda kunshi koda corpuscles da ake kira madauki na Henle.

A bukatarsa koda corpuscle kunshi Malpighian glomerulus da Bowman ta kwantena - Shymlanskaya. Domin a farkon shi ne ya kamata a lura da cewa wani ball ne ainihin wani tarin kananan capillaries. Jini samun ta hanyar nan prinosnuyu jijiya - an tace jini. Balance jini samu efferent arterioles.

A kwantena na Bowman - Shymlanskaya kunshi biyu zanen gado - ciki da kuma na waje. Kuma idan m takardar ne talakawa masana'anta na squamous epithelium, tsarin da ciki takardar cancanci fiye da hankali. A ciki na kwantena da aka rufe podocytes - ne Kwayoyin cewa cika da rawar da wani ƙarin tace. Sun rasa glucose, amino acid da wasu abubuwa, amma hana motsi na manyan sunadarai na gina jiki. Saboda haka, a cikin koda corpuscle kafa farko fitsari, wanda shi ne daban-daban daga jini ne kawai da babu manyan kwayoyin.

Nephron: tsarin da proximal tubule da madauki na Henle

Proximal tubule ne wani mahaluži wanda ya haɗu da na koda corpuscle da madauki na Henle. Tu tubule yana villi, wanda kara jimlar yanki na ciki lumen, game da shi kara da sake-sha yi.

Proximal tubule smoothly a cikin ƙasa ɓangare na madauki na Henle, wanda aka halin kananan diamita. A madauki da aka saukar a cikin medulla inda bends a kusa da kansa axis ta 180 digiri da kuma hawa - a nan yana farawa hawa na Henle ta madauki, wanda yana da yawa ya fi girma, kuma, daidai da, da diamita. Tashin madauki kwance kamar matakin da glomerulus.

A tsarin da nephron: da distal tubules

Mafitar ɓangare na madauki na Henle a cikin bawo da ke shiga cikin abin da ake kira distal convoluted tubule. Ya zo a cikin lamba tare da ball da kuma a lamba tare da waje prinosnoy da arterioles. Akwai aka yi a guntun sha na gina jiki. Distal tubule wuce a wasan karshe sashe na nephron, wanda a nuna gudana a cikin tattara tube, da m ruwa a cikin koda kafafuwa.

rarrabuwa na nephrons

Ya danganta da wurin da aka raba uku main iri nephrons:

• cortical nephrons dokoki kimanin 85% na jimlar dukkan tsarin raka'a a koda. Kamar yadda mai mulkin, suka suna located a cikin matsanancin koda bawo, wanda shi ne, a gaskiya, kamar yadda suke a fili cikin sunan. Nephron tsarin irin wannan ne dan kadan daban-daban - da madauki na Henle ne kananan.
• juxtamedullary nephrons - irin Tsarin ne kawai tsakanin kwakwalwa da kuma cortical Layer, da dogon madauki na Henle cewa, shiga zurfi cikin medulla, wani lokacin kai pyramids.
• subcapsular nephrons - tsarin, wanda aka shirya kai tsaye daga ƙarƙashinsu da kwantena.

Yana iya lura da cewa, tsarin da nephron ne Mafi m tare da ayyuka.