Which combining form means a duct or blood vessel?

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Multiple Choice

Which combining form means a duct or blood vessel?

Explanation:
Vas/o- is the combining form that means a duct or blood vessel. It comes from Latin vas for vessel, and the linking vowel -o- joins the root to a suffix to form medical terms. This form appears in words like vas deferens (the duct that carries sperm) and vasculature (the network of vessels), as well as vasoconstriction (narrowing of a vessel). The other options don’t function as a combining form for vessel or duct meanings, so vas/o- is the right choice.

Vas/o- is the combining form that means a duct or blood vessel. It comes from Latin vas for vessel, and the linking vowel -o- joins the root to a suffix to form medical terms. This form appears in words like vas deferens (the duct that carries sperm) and vasculature (the network of vessels), as well as vasoconstriction (narrowing of a vessel). The other options don’t function as a combining form for vessel or duct meanings, so vas/o- is the right choice.

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