What
is Muscular System?
The
muscular system is a system of tissues - called muscles - throughout the body
which allow you to move. Most of the muscles in the body are under conscious
control and are moved by commands sent to the muscles from the brain via the
nervous system. However, some muscles (such as the cardiac muscles) are
involuntary - that is, they move regularly without any conscious control.
Muscles are made up of millions of tiny protein filaments which work together
to produce motion in the body. They move and make us capable of a variety of
actions by simply contracting and becoming shorter or by relaxing and becoming
longer.
The muscular system consist
of three different types of muscle tissues : skeletal, cardiac, smooth.
Functions of Muscular System
1.Skeletal
Muscles Create Movement
2.Skeletal
Muscles Protect Organs
3.Cardiac
Muscle Pumps Blood
4.Smooth
Muscle Aids Digestion
5.Smooth
Muscle Ensures Blood Flow
6. Maintenance of posture also due to skeletal
muscles
7.Respiration due to movements of the muscles of
the thorax
8.Production of body heat, which is necessary
for the maintenance of body temperature, as a byproduct of muscle contraction
9.Communication, such as speaking and writing,
which involve skeletal muscles
10.Constriction of organs and vessels, especially
smoother muscles that can move solids and liquids in the digestive tract and
other secretions, including urine, from organs
11.Heart beat caused by the contraction of
cardiac muscle that propels blood to all parts of the body
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