proprioreceptors
receptors lying in joint and muscles
Proprioceptors in joints, tendons, etc. send signals to the cerebellum where the information is processed at a subconscious level. Signals also go to the cerebral cortex for processing at a conscious level
muscles contract and relax by bring about movements.
involantary muscles form movements like cardaic muscles do
extension, contraction
The receptors for kinesthesis are nerve endings found in the parts of the body.
Voluntary muscles help you to perform voluntary movements.
Your Skeletal Muscles
Muscles contain certain proteins called contractile proteins which enable it to contract and relax to bring about movements.
There are several compounds and drugs that may block acetylcholine receptors. They are collectively known as cholinergic antagonists.
Arector pili muscles get innervation from sympathetic out flow. But the neurotransmitter is acetylcholine. So functionally the nerve supply is parasympathetic.
Complex muscle movements is the ability for the muscles to move to the desired directions.