Ureter - marongerwo uye mashandiro nezvezvimwe zvinetso zvedundira

Ureter - nhete mutsinga dzinofamba nemukaka, iro rinobatanidza itsvo uye dundira kuburikidza iyo weti mashizha kubva itsvo kupinda dundira. Marongerwo uye kushanda ureters nechokwadi dzose kushanda nezvezvimwe zvinetso zvedundira. Mumwe itsvo ane ureter, chinokambaira kubva renal chiuno uye anopinda dundira. Kureba nechimwe ureter masendimita anenge 30, dhayamita anoda kubva 4 kusvika 7 mm. ureter Kukura kwakakosha munyika urolithiasis. Matombo acho makuru kupfuura 4 mm havangagoni vakasununguka kubuda aine kwazvino weti iri dundira uye kuguma kukura renal colic.

Ureter: nemamiriro pamusoro abdominal uye pelvic zvikamu

Kubva renal chiuno ureter ari pasi negwara uye pakati, uye chiuno, ndipo anopinda dundira, probodaya rusvingo yake imwe oblique negwara. Mumwe ureter kusiyanisa ane abdominal uye pelvic chikamu. Abdominal chikamu ureter yaiva pamberi psoas tsandanyama. Pamberi kurudyi ureter anosiiwa rigone duodenum, midziyo ropa uye mujinga mesentery yacho ura duku. Mberi kuruboshwe ndiwo duodenal-jejunal flexure, vascular tsapo uye mujinga mesentery yacho sigmoid muura.

The pelvic Chikamu ureter zvakaitika pamberi ari iliac arteries uye mutsinga. The dhayamita of urethra muchikamu ichi kujekesa. Varume, unofamba pamberi vas deferens uye pazasi rokumusoro danda kubva pakati seminal vesicle mainozonodira dundira. The pelvic Chikamu ureter mune vakadzi vari akaipoteredza. miviri: asi ureter anomhanya pamwe kumucheto uterine cervix uye ovary, anopinda dundira divi nyinyo.

Akadana intramural mugove ureter, yaiva mukati parusvingo dundira.

Ureter: sechivako rusvingo

Rusvingo ureter, uyewo renal chiuno uye makapu rinoumbwa zvitatu akaturikidzana: rokunze - connective zvinyama chomukati zvinenge zvakazara mumasero mucous uye svikiro zvinosanganisira maviri akaturikidzana ose tsandanyama mukati Transitional epithelium - longitudinal uye tenderera. Ureters musculature haina chokuita tsandanyama paiva dundira uye chinonditadzisa neizvi chokubuda weti kubva dundira kupinda ureter.

In panzvimbo panowanikwa ureter kupinda dundira vari parusvingo ayo paiva longitudinal tsandanyama, rakada kufanana tsandanyama paiva dundira. rukoko urwu ari kushingaira kuita neizvi Scored weti kupinda ureter. Kuvapo rukoko urwu ichikutadzisa kupararira chirwere kubva dundira kupinda ureter uye kupinda itsvo.

Ureter: chivako chacho Clearance

The lumen of ureter ane kurambidzwa dzakawanda:

- The yokutanga akavarambidza ari kuchinja nzvimbo chiuno kupinda ureter;

- wechipiri iri pamuganhu pakati abdominal uye pelvic nharaunda;

- wechitatu aienda kunogona chero chikamu pelvic mugove;

- wechina riri pedyo constriction yacho dundira rusvingo.

Kuvapo dzinongoitika constrictions zviri ureters ine zvinokosha zvekuchipatara zvakatokura. Muzvikamu izvi vakaramba matombo exiting ari renal chiuno uye Urinary kuitika hwokufambira nenzira dundira.

In weboka ureter kuwedzera anatomical mitemo vasiri constriction, anoonekwa uye kubviswa panguva peristalsis.

Ureter: nemamiriro ropa rive uye innervation

Yokumusoro Chikamu ropa kubva ureter anogamuchira mapazi pakukoka kubva itsvo, uye testicular kana ovarian arteries. The pakati chikamu yaipiwa neropa kubva ureteral matavi yaidzika kubva abdominal yeropa uye iliac arteries. The repasi chikamu - kubva vesical uye pakati rectal arteries. ropa kuyerera rikaitika womukati iliac uye lumbar tsinga.

Innervation of ureter rinoitwa nekutevera mashoma autonomic tsinga plexus. Mapazi vagus etsinga uye pelvic splanchnic tsinga zvinopa parasympathetic innervation.