This diagram shows muscles and tendons in the upper arm. When the biceps muscle contracts, which way does the hand move?up, toward the shoulderdown, away from the shoulderSubmit
Question
This diagram shows muscles and tendons in the upper arm. When the biceps muscle contracts, which way does the hand move?up, toward the shoulderdown, away from the shoulderSubmit
Solution
When the biceps muscle contracts, the hand moves up, toward the shoulder. This is because the contraction of the biceps muscle shortens the distance between the shoulder and the forearm, pulling the forearm up.
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