In exactly 15 words can you explain how the arm bends and straightens?

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asked Apr 28, 2022 17.2k views

23 votes

In exactly 15 words can you explain how the arm bends and straightens?

Biology
middle-school

Marco Lazzeri asked

by Marco Lazzeri

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1 Answer

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The biceps and triceps act against one another to bend and straighten the elbow joint

Samizdis answered May 5, 2022

by Samizdis

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