This is for a p. e. test on soccerwhich of the following is not a rules violation in soccer? a. chest trap b. tripping c. handball d. obstruction

1.controls blood flow2.controls oxygen flow3.carries oxygen rich blood to veins

What ar the options

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.