In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: When blood vessels in the head dilate, what kind of severe headache can occur? Answer: migraine

A: When blood vessels in the head dilate, a migraine, a severe headache, can occur.
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Q: Question: What system consists of neurons that carry signals to skeletal muscles? Answer: motor system

A: The motor system consists of neurons that carry signals to skeletal muscles.
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Q: Question: Flowers pollinated by what means generally lack brightly colored parts? Answer: wind

A:
Flowers pollinated by wind generally lack brightly colored parts.
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