Assistant Laboratory Animal Technician (ALAT) Practice Exam

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What is the meaning of the prefix "endo"?

Outside
Inside
Above
Below

The correct answer is: Inside

The prefix "endo-" originates from the Greek word "endon," which means "inside" or "within." In various scientific and medical terms, this prefix is used to denote something that occurs within a structure or is internal to a system. For instance, in "endocrine," it refers to glands that release hormones internally into the bloodstream. Understanding this prefix is crucial in fields such as biology and medicine, where it frequently appears to describe processes and structures that are integral but internal, helping to clarify the context in which they function. The other options relate to different prefixes that denote external (outside), superior (above), or inferior (below) positions, which do not align with the meaning of "endo."