Which of these statements correctly describes intrafusal muscle fibres?

Question

Quizplus · Accepted Answer

Intrafusal muscle fibres are specialized muscle fibres found within muscle spindles, which are sensory receptors that detect changes in muscle length and tension. Intrafusal fibres contain sensory nerve endings called proprioceptors that are activated by stretch, providing information to the central nervous system about the position and movement of body parts. They are not supplied by alpha motor neurons, do not contain contractile elements, and are not found within muscle cell membranes like regular muscle fibres.

Which of These Statements Correctly Describes Intrafusal Muscle Fibres