What is the meaning of the prefix Ex- in medical terminology?

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Multiple Choice

What is the meaning of the prefix Ex- in medical terminology?

Explanation:
Ex- denotes outward direction or origin outside. This is why it appears in terms like exhale (to breathe out), exocrine (glands that secrete outward from the body), and exoskeleton (the outer skeleton on the outside). So the meaning “Out, away from” is the best match for this prefix. The other directions—inside (endo- or intra-), across (trans-), or through (per- in some contexts)—don’t align with ex- because ex- specifically signals moving away from or originating outside.

Ex- denotes outward direction or origin outside. This is why it appears in terms like exhale (to breathe out), exocrine (glands that secrete outward from the body), and exoskeleton (the outer skeleton on the outside). So the meaning “Out, away from” is the best match for this prefix. The other directions—inside (endo- or intra-), across (trans-), or through (per- in some contexts)—don’t align with ex- because ex- specifically signals moving away from or originating outside.

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