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Questions and Answers
Which structures detect changes in length of the surrounding muscle fibers caused by body movements?
Which structures detect changes in length of the surrounding muscle fibers caused by body movements?
- Golgi tendon organs
- Muscle fascicles
- Muscle spindles (correct)
- Intrafusal fibers
What type of fibers are densely filled with nuclei and surrounded by a connective tissue capsule in muscle spindles?
What type of fibers are densely filled with nuclei and surrounded by a connective tissue capsule in muscle spindles?
- Extrafusal fibers
- Non-striated fibers
- Striated fibers
- Intrafusal fibers (correct)
Which structure collects information about the degree of tension among tendons?
Which structure collects information about the degree of tension among tendons?
- Muscle spindles
- Intrafusal fibers
- Golgi tendon organs (correct)
- Muscle fascicles
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Study Notes
Muscle Feedback Mechanisms
- Muscle spindles detect changes in length of the surrounding muscle fibers caused by body movements.
Muscle Spindle Structure
- Muscle spindles contain intrafusal fibers, which are densely filled with nuclei and surrounded by a connective tissue capsule.
Tendon Tension Feedback
- Golgi tendon organs collect information about the degree of tension among tendons.
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