The bachelor is called sonography but I will explore others. Is there any more you guys would recommend that prepare you
I never heard of that being a major before. Be sure you are looking at the bachelors degree section.
Like others said, you just need a 4 year degree. Majoring in biology in most institutions will allow you to graduate with all the pre-reqs needed to get into med school and prep you for the MCAT. You do need to realize however that you may not want to go to medical school after a couple semesters. Be sure that your undergrad degree can also serve as a backup.
If you like engineering, you may want to look into biomedical engineering. My school promotes this as a great pre-med major and it also doubles as a great plan B. Don't be just another biology pre-med if you don't like biology. I will warn you, biology is the study of all life (not just humans). You will be stuck learning about ecosystems, plants, evolution, and everything else in the animal kingdom. My developmental biology class was all about studying mice, chicks, fly's, and sea urchins. If this isn't what you like, you may just want to take the basics (bio/chem/phys/orgo/etc).
I also want to warn you that some schools recommend courses like genetics, biochemistry, dev bio, anatomy and physiology, cell bio, etc. If you wan't to take these recommendations to heart then you may want to stick with the biology major as many of these courses are upper level bio classes (depends on your institution, check pre-reqs).