Which prefix means 'Within, inside'?

Which prefix means 'Within, inside'?

• A. Inter
• B. Intra
• C. Iso
• D. Epi

Answer: (A)

Within, inside is conveyed by the prefix intra- from Latin intra meaning within. It shows up in terms like intramuscular (within the muscle), intracranial (inside the skull), and intracardiac (within the heart). The other prefixes have different meanings: inter- means between, epi- means upon or on top of, and iso- means equal or the same. So intra- is the one that expresses the idea of inside or within.

Within, inside is conveyed by the prefix intra- from Latin intra meaning within. It shows up in terms like intramuscular (within the muscle), intracranial (inside the skull), and intracardiac (within the heart). The other prefixes have different meanings: inter- means between, epi- means upon or on top of, and iso- means equal or the same. So intra- is the one that expresses the idea of inside or within.