how many muscles are in the human body



Overview :

The muscular system consists of a gaggle of specialised cells called muscle fibers, and actually the muscles are connected to variety of other parts of the body so as to be ready to perform their function, which are the bones, internal organs and blood vessels, and therefore the main function of the muscles is contraction with the goal of movement Accordingly, it are often said that the movements of the body of various types are caused by contraction , in cooperation with the joints and therefore the skeleton , including walking and running. like standing or sitting, stabilizing the joints, and producing heat through metabolic processes that occur within the muscles, knowing that the assembly of warmth during these operations is vital to take care of the blood heat within acceptable limits. 
And by completing the discussion of the role of muscles, it's indicated that healthy muscles allow the movement of the person freely and provides him the strength necessary to enjoy in exercising various exercises, including swimming. The muscles play the important role in giving the joints the specified shape. for instance , if the muscles round the knee are weakened, the prospect of wounding the knee and exposing it to wounds increases, and powerful muscles also help in maintaining the specified body balance. 

 the amount of muscles within the physical body 

The muscles are in the human body constitute approximately 40% of the whole weight , because the amount of muscles are in the human body exceeds 600 muscles, and by talking about the muscles we show that every muscle consists of thousands of muscle fibers, and every muscle cell is 40 mm long , consisting of small strands of fibers Smaller are referred to as fibers, and therefore the strength of the muscle depends mainly on the amount of fibers that structure it. As for contraction , it's under the command and control of nerves. ATP muscles to supply K.E. .

sorts of  muscles are in the human body

 There are three sorts of muscles within are in the human body . the subsequent is briefly described: 
Skeletal muscles: Also referred to as striated muscles (in English: Striated muscles) because they seem under a microscope within the sort of strings, which are specialized tissues connected to the bones during a manner that permits their movement, and therefore the bones with the skeletal muscles are referred to as the system , and it's worth mentioning that these muscles are classified within voluntary movements, meaning Man controls its contractility and extensibility. In fact, the muscular system is that the largest organ within the body, accounting for 45-55% of the body’s mass. 
Smooth muscles: These muscles also are referred to as involuntary muscles, because their movement (constriction and extensibility) isn't subject to human control, and that they are present in blood vessels like arteries, and lots of internal organs like the gut and uterus, and these muscles are arranged in layers that contract with a selected system. 
Heart: muscle ( in English: Cardiac muscle), are almost like these muscles with striated muscle they seem within the sort of filaments under the microscope, but it's different from that cardiac muscle constrict and flattens without human consciousness and perception.