Muscle Growth Essay

2839 words - 11 pages

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Muscle Growth
Introduction
With the introduction of such modern conveniences such as the automobile, remote control, and
even the electric toothbrush people are relying on technology to do everything for them. With a
generation growing up in todays society physical tasks have almost become obsolete. Tasks such
as even going shopping and going out to visit a friend can be done from the comfort of your own
computer. With this sedentary lifestyle, muscular size will almost be unnecessary, except for the
athlete who wants to succeed in sports. To the non-athlete, there will be no reason to leave the
house because everything that you need will be at your fingertips, you will not have to get up and
do anything. Any type of exercise is good for the body and muscles. Muscle growth is essential if
you want to look better, feel better, and perform everyday tasks such as walking to the car, and
getting out of bed easier. A person who is in shape will also sleep better then an out of shape
person, and feel more revitalized in the morning.

Muscles account for approximently 35% of the body weight in women, and about 45% of the
body weight in men. With over 600 muscles covering the human skeleton muscles give the body
bulk and form. Then human body contains millions of muscle fibres whose coordinated
contraction cause the whole muscle to contract.

Muscles are the foundation on which our bodies are built. Without muscles our bodies could not
perform the simplest tasks such as opening our eyes, talking, breathing and even the pumping of
our heart or the most difficult tasks, such as running the hurdles in a track and field event..
Muscles are also important to maintain balance and posture.

Description of Muscles
In the body there are several types of muscles that control different functions in the body, one of
these types being skeletal muscle. Skeletal muscle is the most evident in the human body due to it
having the most mass the other types of muscles and that it lies directly under the skin attached to
the skeleton by tendons and ligaments.

Skeletal muscles are divided into three structural units, the entire muscle, the muscle bundle, and
the muscle fiber (cell). Each muscle fiber is divided into two types of fiber structure, fusiform and
pennate, with the pennate being broken up into three basic structures. These structures being the
unipennate, bipennate, and multipennate.

        
        
        
        
        
        
        Notice the longditudinal grain of the
        

        
        
        
        
        
        
        fusiform muscles (left) compared the
        

        
        
        
        
        
        
        pennate muscles. (below)

Striated muscle tissue (above) is associated with the muscles related to the skeleton and
movement. Striated muscle tissue is...

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