Muscle Growth

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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 ...

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takes place in the muscle fiber themselves. When a
muscle grows there is not a increase in the amount of muscle fibers, since this
is set at birth, but rather an increase in the size of those muscle fibers, and
an increase in the amount of connective tissue in the muscle. Muscle fibers are
enlarged through resistant training, or regular activity by stimulating the
amount of the contractile proteins, actin and myosin. What this does is make
more cross bridges available to do more work.

Muscle fibers with no apparent
resistant training
Muscle fibers with considerably
more resistant
training

The stimulus that tells the muscle to grow is a result of two things, ...

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