The accessory nerve is tested by evaluating the function of the trapezius and sternocleidomastoid muscles.
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Answer:
2. it can identify people who have been in contact with an infected person
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Explanation:
Isotonic contractions generate force by changing the length of the muscle and can be concentric contractions or eccentric contractions. A concentric contraction causes muscles to shorten, thereby generating force. Eccentric contractions cause muscles to elongate in response to a greater opposing force.
