SYMPATHETIC KO SIFFOFIN MUTANE SIFFOFINSA

Wannan tsarin ya ƙunshi manyan katako biyu ko igiyoyin ganglia (cibiyoyin jijiyoyi), wanda ya fara daga tushe daga kwakwalwa zuwa coccyx, kuma ya kasance a gefe ɗaya dama da bangarorin hagu da bangare a gaban kashin kashin baya; da kuma, gaba, daga cikin manyan jijiyoyin jijiyoyi guda hudu da kananan kararran ganglia a cikin cavis na jiki; kuma da yawa daga cikin jijiyoyin jijiya wadanda suke fitowa daga wadannan sassan. Hanyoyin igiyoyin guda biyu suna haɗuwa a sama a cikin ƙaramin ganglion a cikin kwakwalwa, kuma a ƙasa a cikin coccygeal ganglion a gaban coccyx.

Fig. VI-B

Spinal shafi Vagus jijiya Plexus na hasken rana

Fig. VI-C

A cikin siffa VI-B, zuwa hagu na kashin kashin baya, ana nuna ɗayan igiya biyu na tsarin juyayi na juyayi. Daga ita ake ganin shimfida kwarangwal na jijiyoyi, wanda form kararrakin da ake yadawa kamar gizo-gizo webs ne akan narkewar abinci da sauran gabobin a cikin tafukan jikin mutum; a cikin gamsuwa na rana ana haɗa su ta hanyar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta.

Fig. VI-C wani zane ne da ke nuna igiyoyin ganglionic biyu na tsarin son rai, suna haɗuwa a ƙasa; gudana tsakanin su shine kashin baya, wanda yake ƙare kusa da coccyx. A bangarorin ana nuna ƙodan, byan talla ne.