What is the medical term for rupture?

The medical term for rupture is indeed "-rrhexis." This suffix is derived from the Greek word "rhexin," meaning "to break" or "to burst." When used in medical terminology, it usually indicates a rupture of an organ or structure. For example, in the term "enterorrhexis," it refers to the rupture of the intestine.

The other choices represent different concepts in medical terminology. The suffix "-pexy" refers to surgical fixation, which is used when a structure is anchored in place rather than ruptured. The suffix "-rrhagia" indicates a bursting forth, usually of blood, as in hemorrhage, and refers specifically to excessive bleeding rather than the act of rupture itself. The suffix "-rrhaphy" denotes surgical repair or stitching of a tissue or organ, rather than its rupture. Therefore, "-rrhexis" is the most precise term to describe rupture.