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

In exactly 15 words can you explain how the arm bends and straightens?
asked 17.2k views
23 votes
In exactly 15 words can you explain how the arm bends and straightens?

asked
User Marco Lazzeri
by
8.0k points

1 Answer

5 votes

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

answered
User Samizdis
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8.1k points
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