Which prefix means toward?

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Multiple Choice

Which prefix means toward?

Explanation:
Direction in medical terms is shown by prefixes. Toward is indicated by ad-, as in adduction (movement toward the midline) or adductor (a muscle that pulls a part toward the midline). That makes ad- the best choice. Ab- means away from, as in abduct; the opposite direction. Pulmon/o and ot/o are roots referring to the lung and the ear, respectively, and do not express direction.

Direction in medical terms is shown by prefixes. Toward is indicated by ad-, as in adduction (movement toward the midline) or adductor (a muscle that pulls a part toward the midline). That makes ad- the best choice. Ab- means away from, as in abduct; the opposite direction. Pulmon/o and ot/o are roots referring to the lung and the ear, respectively, and do not express direction.

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