Ihe nzacha kandụl nwere ọtụtụ ihe nzacha tube n'ime ụlọ, nke ga-enwe ụfọdụ nrụgide nrụgide mgbe nzacha. Mgbe ikpochapu mmiri mmiri ahụ, a na-ebupụ achicha nzacha site na ịghaghachi azụ na ihe nzacha nwere ike ijikwa ya ọzọ.