Essay on The Circulatory System

Essay on The Circulatory System

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The Circulatory System


The circulatory system is almost the most important system of all of
the different body systems because it supplies the body with the blood
and nutrients it needs to function properly and maintain life and
movement. The heart is a muscular organ that lies behind the ribcage
and between the lungs and is a pump that keeps this transport system
moving. Normally a person's heart is as big as their fist while it is
clenched; the heart is made up of thick muscly walls and is divided
into two separate pumps.

The heart is about the size of your clenched fist, it has thick
muscular walls and is divided into two separate pumps and each of
these pumps has two more chambers. The upper chamber (atrium) receives
blood that is coming in from the veins and the blood flows through a
one-way valve, which makes ensures it always moves in the correct
direction, into the larger chamber (ventricle). It has thick strong
walls that contract together to squeeze blood through yet another
valve and then out into the arteries. The average person has about
four to five litres of blood in their body, the blood is the transport
system that delivers oxygen and nutrients to the bodies cells, and
carries waste materials away. Also blood carries substances called
hormones, which control the bodies numerous processes as well as
antibodies to fight invading germs. The circulatory system is used
constantly during weightlifting because it gives the muscles energy to
move and feeds them with proteins to make them bigger.

[IMAGE]The circulation of the body has two different parts, with the
heart acting as a double pump, blood from the right...


... middle of paper ...


...r but still have the same effect as it would
normally.

By Brad ManuelIn the sport of weightlifting it is very important that
weights are not lifted to excess or excessively heavy because of the
damage that it can do to a persons structure. Lifting ridiculously
heavy weights can put bones out of place, but it can't stunt your
growth as previously rumoured. That rumour appears to have started
being circulated because the Olympic Weightlifters are all small, but
it is actually an advantage in the sport of weightlifting to be short
as there is then less height to lift the weight up to. Weightlifting
is infact very helpful for sports and other activities because when
there is more muscle on a person they are better protected from hits
in body contact sports, helps with endurance and also helps with
recovery and power.

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