I am a student in the medical college, and sometimes I need to study on a cadaver. Once, I accidentally…

Answer

In the name of Allah, know, my son, that touching any part of the deceased—whether it is attached to the rest of the body or separated—requires performing Ghusl for touching the dead. Prayer is not valid without performing this Ghusl. However, if you were wearing gloves and did not touch the organs directly, Ghusl is not required. When Ghusl is required, all prayers performed without it must be made up. Allah knows best.