Shetkeri arterııalardyń aýrýlary – aıaqty jáne aıaqtyń ushyn qanmen qamtamasyz etetin arterııalardyń qabyrǵalaryn nyǵaıtýǵa jáne taryltýǵa aparatyn derttik jaǵdaı.

Tamyrlardyń sańylaýynyń tarylýy olardaǵy qan aǵymynyń azaıýyna aparady, bul nervter men tinderdiń zaqymdanýyn týyndatady.