I need muscle essay asap thank you Conduct research using at least two sources to locate additional information about muscles. Some key words for your search might include the following:

three different types of muscles
skeletal muscle
striated muscle
smooth muscle
cardiac muscle
muscle fibers
slow-twitch muscle fibers
fast-twitch muscle fibers
muscle contractions
concentric contraction
eccentric contraction
isometric contraction
Keep the following questions in mind while conducting your research:

What are muscles?
What are the functions of muscles?
Why are they so important within the human body?
How many muscles are found within the human body?
What are three different types of muscles?
What are the two basic types of muscle fibers?
What are different types of muscle contractions?