Which of the following is a characteristic of nuclear bag fibers?

Name: Which of the following is a characteristic of nuclear bag fibers?
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[III B 3 a (1)]. Nuclear bag fibers are one type of intrafusal muscle fiber that make up muscle spindles. They detect dynamic changes in muscle length, give rise to group Ia afferent fibers, and are innervated by $\gamma$-motoneurons. The other type of intrafusal fiber, the nuclear chain fiber, detects static changes in muscle length.

Which of the Following Is a Characteristic of Nuclear Bag α\alphaα

Which of the Following Is a Characteristic of Nuclear Bag $\alpha$