Parts of Nervous System. Nervous System: Nervous system is the chief controlling and coordinating system of the body. It controls and regulates all activities of the body, whether voluntary or involuntary, and adjusts the individual (organism) to the given surroundings.
1.Skeletal muscles are attached to the bones. Smooth muscles line up the visceral organs viz. Intestines,blood vessels,pupils etc (therefore also known as visceral muscles.) 2.Skeletal muscles perform voluntary actions. Smooth muscles are responsible for involuntary reflexes and actions.
There is one MAJOR difference between smooth muscle and skeletal muscle that we need to consider here: Unlike skeletal muscle, smooth muscle can be made to contract by hormones and paracrine agents. Smooth Muscle Cells can also be activated/inhibited by hormones: Smooth muscle cells are not solely dependent on innervation for their inputs.