EXCRETORY SYSTEM
By: Chayla, Chloe, Meagan, and Rhys
What is the excretory system?
And
The main function


Removes excess
unnecessary materials
from an organism
The removal of excess
materials helps
maintain homeostasis
(an organism that
prevents damage to
the body)


Most healthy organs
produce waste for the
body to excrete
The main function is it
removes waste
products of the
metabolism from body
tissues to prevent
damage
Organs, Tissues Affected


Kidneys- removes
nitrogenous wastes
from the blood, salts
and extra water is
removed and excreted
in the form of urine
Liver- breaks down
poisons and toxins, the
liver can produce urea
which is sent to the
kidneys to be made into
urine and the liver can
make bile
 Bile- after being
produced in the liver
its stored in the gall
bladder where it is
sent to the small
intestine
Organs, Tissues Affected (continued)
Which breaks down into
harmless substances
 Large Intestinecollects waste from
throughout the body
and transports it
through 5 feet of
intestine and then goes
to tubes to be
excreted

Skin- moves sweat
through glands to rid
your body of extra
wastes
How the Excretory System Works Together
The digestive system
digests food which are
broken down into things
like glucose. The glucose
is circulated through the
blood into the muscular
system and then is used
for aerobic respiration.
For aerobic respiration
your muscles need
oxygen. The oxygen is
carried to other parts of
the body to certain cells.
The cells give off carbon
dioxide which is then
taken back to the lungs
and the excretory system
gets rid of the carbon
dioxide.
Problems and Dysfunctions
If the excretory system
doesn’t work properly the
toxins won’t be released and
eventually this will lead to
death. If only one part of
the system fails, the toxins
won’t be able to filter and
after the toxins get stored in
the blood, the blood will
circulate around the body
bringing diseases with it and
around the body, eventually
this will lead to death.
Another problem about this
system is if the person can’t
perspire, when exercising
there won’t be sweat to cool
the person down, which can
make the person tire quickly.
As the sweat releases the
excess sodium from the body,
the body will eventually
have too much sodium which
will lead to high blood
pressure and other problems
in the body.
Common Diseases


Kidney Stones are hard masses
that form in the urinary system
from crystals that separated from
the urine. Symptoms of kidney
stones include extreme pain,
cramping in the back and lower
abdomen, nausea and vomiting.
Pyelonephritis is a type of
urinary tract infection that travels
to the kidneys from the urethra or
bladder. The infection occurs
when bacteria enters the body
through the urinary tract.
Symptoms include fever, pain in
the groin, abdominal pain, and
blood in urine.

Urethritis is an inflammation of
the urethra caused by the same
microbes that cause urinary tract
infections. Symptoms vary
between genders. Symptoms in
men include blood in the urine or
burning during urination, frequent
urination. Symptoms for women
include abdominal pain, fever,
chills, frequent urination, and
pain in the pelvis.