In medical terminology, which prefix often refers to 'through' or 'across'?

The prefix that refers to 'through' or 'across' in medical terminology is "trans-." This prefix is derived from the Latin word "trans," meaning "across" or "beyond." In medical contexts, it is commonly used in terms such as "transfusion" (the process of transferring blood across to a patient) or "transport" (to carry something from one place to another). Understanding the meaning of this prefix can help in deciphering various medical terms that involve the idea of movement or passage through something. This makes it an essential component in medical vocabulary, facilitating communication and understanding in the healthcare field.