Which of the Following Statements Are True of Muscle Sense

Which of the following statements are true of muscle sense (Select all that apply) ?

A) The receptors detect the contraction of muscles.
B) The brain forms a mental picture of where the muscles are.
C) Conscious muscle sense is integrated in the cerebellum.
D) Unconscious muscle sense contributes to the coordination of voluntary movements.
E) Muscle sense may be conscious when learning a motor skill,and then become unconscious when the skill is mastered.
F) The receptors are called proprioceptors.