Definition of "serratus" []

• Any of several muscles of the vertebral or costal region that produce a serrated border (noun)

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• "Q And the serratus anterior nerve that -- or the nerves that go to it, where do they come from?"
• "That's in addition to the muscles you're targeting: delts, traps, triceps, and serratus."
• "After including pressouts for several sessions, you'll become intimately familiar with the location and function of your serratus anterior muscles."