Which of the Following Develop as Specialized Muscle Fibers

Question

Which of the following develop as specialized muscle fibers?
A) tendon organs
B) hair cells of the inner ear
C) muscle spindles
D) joint kinesthetic receptors

Accepted Answer

Muscle spindles are specialized sensory receptors within the body of a muscle that primarily detect changes in the length of the muscle. They convey length information to the central nervous system via sensory neurons. This information can be processed to adjust muscle contraction dynamics, thus playing a crucial role in maintaining muscle tone and posture. Unlike tendon organs, hair cells of the inner ear, and joint kinesthetic receptors, which serve different sensory functions, muscle spindles are indeed specialized muscle fibers designed for proprioception.