The prefix ENDO- indicates which meaning?

The prefix ENDO- indicates which meaning?

• A. Inside
• B. Outside
• C. Above
• D. Beneath

Answer: (A)

ENDO- means inside or within. It comes from Greek endon, meaning inner, and is used in medical terms to indicate something located within a structure or boundary. For example, endoscope is a tool for looking inside the body; endocardium is the inner lining of the heart; endometrium is the inner lining of the uterus. The opposite ideas are outside (often shown by prefix like ecto- or exo-), or above/beneath (epi- for above, hypo- for beneath). Because ENDO- denotes interior location, it accurately matches the meaning “inside.”

ENDO- means inside or within. It comes from Greek endon, meaning inner, and is used in medical terms to indicate something located within a structure or boundary. For example, endoscope is a tool for looking inside the body; endocardium is the inner lining of the heart; endometrium is the inner lining of the uterus. The opposite ideas are outside (often shown by prefix like ecto- or exo-), or above/beneath (epi- for above, hypo- for beneath). Because ENDO- denotes interior location, it accurately matches the meaning “inside.”