Download The human body contains more than 650 individual muscles which

The human body contains more than 650 individual muscles which are attached to the
skeleton, which provides the pulling power for us to move around. The main job of the
muscular system is to provide movement for the body. The muscular system consist of
three different types of muscle tissues : skeletal, cardiac, smooth. Each of these different
tissues has the ability to contract, which then allows body movements and functions.
There are two types of muscles in the system and they are the involuntary muscles, and
the voluntary muscles. The muscle in which we are allow to control by ourselves are
called the voluntary muscles and the ones we can? control are the involuntary muscles.
The heart, or the cardiac muscle, is an example of involuntary muscle.
CARDIAC MUSCLE:
The cardiac muscles is the muscle of the brain itself. The cardiac muscle is the tissue that
makes up the wall of the heart called the mydocardium. Also like the skeletal muscles,
the cardiac muscle is striated and contracts through the sliding filament method. However
it is different from other types of muscles because it forms branching fibers. Unlike the
skeletal muscles, the cardiac muscle is attached together instead of been attach to a bone.
SKELETAL MUSCLE:
The skeletal muscle makes up about 40 % of an adults body weight. It has stripe-like
markings, or striations. The skeletal muscles is composed of long muscle fibers. Each of
these muscles fiber is a cell which contains several nuclei. The nervous system controls
the contraction of the muscle. Many of the skeletal muscle contractions are automatic.
However we still can control the action of the skeletal muscle. And it is because of this
reason that the skeletal muscle is also called voluntary muscle.
SMOOTH MUSCLE:
Much of our internal organs is made up of smooth muscles. They are found in the urinary
bladder, gallbladder, arteries, and veins. Also the digestive tract is made up of smooth
muscle as well. The smooth muscles are controlled by the nervous system and hormones.
We cannot consciously control the smooth muscle that is why they are often called
involuntary muscles.