The human body is capable of movement because the muscular and skeletal systems work closely together. Of the pairs of human body systems listed, what two are most closely linked in function?

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A human body is composed of muscles. Without it, the human body cannot function and will die.  There are three types of muscle tissues: Skeletal muscle, Cardiac muscle, and Smooth muscle. The skeletal muscle aids in the movement of the human skeleton. The 600 skeletal muscles make up 40 % of our body weight and are reliant on the signals released by our nervous system to start moving. Cardiac muscles are those muscles which encloses our hearts. They are involuntary muscles which pumps blood throughout our bodies by creating steady and rythmic pulsing. They also make our heart contract by producing electrical impulses.  Smooth muscles are found in the walls of blood vessels, respiratory passageways, and hollow organs. Its contracting movement is wavelike and it helps in the transfer of food through our stomachs or urine through our bladder.  These muscles responds to nerve impulses and other stimuli.

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