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Human Circulation System

Education Purpose Only
by

Hendra S Back

on 27 October 2017

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Transcript of Human Circulation System

Do this before seeing the presentation
Human

Circulatory System

Do this before seeing the presentation.
Enjoy your sit.
Smile.
But focus.
Heart
Human circulatory system is a system to transport
blood

t
o

all of body parts.
Human circulatory system includes in closed circulation
system, it means that the blood flows
inside
vessels.
Blood
Heart
Our heart is located between lungs, in the middle of the chest, behind the breastbone (sternum). A double-layered membrane called the
pericardium
that surrounds our heart.

* transporting oxygen to cells
F
unctions :
* transporting nutrients from the digestive system to body cells
* transporting hormones to body cells
* transporting waste from body cells to excretory organs
The heart weight is 7 until 15 ounces.
Throughout human life, human heart beat (contracts and relaxs) more than 3,5 billion times.
The size is little larger than the size of our fist.
Pumping about 2,000 gallons (7,571 liters) of blood per day.
F
act
about heart is :
It never
STOP
to beat as long as we live.
H
ow does this system
work
?
Human circulatory system works like

a
water pump
in our house.
water pump
Do you know the
mechanism ?
This tool will pull water from the ground. After water is pulled up, it pushes the water to flow in pipes.
The pipe has function as a channel for water flow. Water flows inside the pipe, so water can move into the destination place like bathroom.
The purpose of using water pump is to push water into the places like bathroom, kitchen or garden. Water is needed by human activity, like :
Like water pump, human circulatory system has
similar
components :
Heart functions to
pump
the blood to all of our body parts. The heart has muscle which works unconsciously.
Blood is one of important parts of human body. Blood is like water in water pump mechanism. It is pumped to all body parts.
Blood Vessel
Blood is also called as a "vehicle" in body transportation, because blood
brings

oxygen and nutrients
for cells. Blood also can
protect
human body from microorganisms or foreign objects.
A blood vessel is like the pipe in a water pump. The function of blood vessels is a channel of blood cells to go to all of body parts. Blood vessels are divided into three kinds;
artery,

vein,
and
capillary.
Invertebrates
Vertebrates
Circulatory

System
Vessels
Blood
heart
These two chambers have
thick
wall.
You know why?
how the heart beat.
The
ventricles
must pump blood to lungs (right ventricle)
and all of body parts (left ventricle).
The
atria
just receive the blood from cava vein (right atria)
and pulmonary vein (left atria), so they don't need
thick wall like ventricles have.
Blood vessels are divided into three kinds.
Artery
Vein
Capillaries
Remember
Vein
Cava vein
Aorta
Artery
Arteriole
Venule
Blood from heart
Blood to heart
Capillary
Vein
Artery
Arteries
and
veins
are divided into three kinds
Mechanisms
Do you know the main difference of
arteries
and
veins
?
Arteries don't have valves.
Veins have valves.
vein
valve
normal blood
flow
Composition of blood :
plasma
cells
+
90% water
(Sugar, protein, hormones etc)
+
other substances
Red
blood cells
White
blood cells
Platelets
Blood is a specialized body fluid that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste to excretory organs.
What actually blood is?
Why
is so important?
Blood is very important because of its
function
:
* blood carries oxygen from lungs to cells.
* blood carries digested food products (nutrients).
from the intestines to the cells.
* blood carries wastes from the cells to the liver
and kidneys.
* blood carries hormones to all of the body.
Blood as "vehicle" for transportation, means :
Body's immune system in blood
destroys
bacteria, fungi and viruses that may infect the body.
Sometimes tear occurs in a blood vessel, for example when we get cut. Blood will leak out and infections may occur.
It is
important
that such tear must be repaired quickly. The blood does this by forming a clot that seal the wound.
How does the blood circulate in our body?
circulating blood to our
body,
circulating blood to our
lungs,
systemic circulation.
pulmonary circulation.
Blood which is rich oxygen is transported through aorta. From aorta, blood goes to capilleries through artery and arteriola. This oxygen is transported to all of body cells. Blood also carries nutrient and hormone for cells.
A
B
Now, blood rich CO and lack of O . Blood regenerates again in the heart. Blood go to right atrium through veins and then cava veins.
In body tissue, there is an gass exchange process. Blood release O to cells and receives CO from cells. Vice versa, cells release CO and receive O from bloods. Other nutrient which is brought by blood is also sent here.
Blood goes to lungs through pulmonary arteries.
Blood which is rich of CO is pumped from the right atrium to the right ventricle. When contraction, the right ventricle pushed the blood to the lungs.
Now, blood which is rich of O is back to heart through pulmonary veins. This O is transported to all of body cells.
Lungs have two parts, right and left sides. Each side contains hundreds of bronchioles, as branches of bronchi.
Each bronchiole is attached by hundreds of bubbles called alveoli.
In this part, the exchange of gasses happens. O bounded by haemoglobin and CO is released out side the lungs.
Blood from lungs enters to the left atrium to be pumped into the left ventricle. When contraction, the ventricle pumps blood into aorta.
D
E
F
G
There is two kinds of circulation in our body :
A,B,C,D
E,F,G,H
H
called
called
Diseases
and
disorders
in
circulation system
in
Blood
Anemia
Hemophilia
Stroke
Heart Attack
Varicose
Drs J. Djoko Budiono, M.Si
Dr. Raharjo, M.Si
End of
P
r
e
s
e
n
t
a
t
i
o
n
Ask question if you don't understand.
(erythrocytes)
(leukocytes)
2
2
2
2
2
2
2
2
Artery
Hypertension
"Let's sing a song to remember our learning today"
(Heart as the pump)
(Blood vessels as pipes)
(Blood as liquid)
"Growing with character"
A human has 4 chambers.
Left atrium
Right atrium
Left Ventricle
Right ventricle
2
2
2
c
Time Alocation :
120 Minute
Learning Objective :
1. Explain the organs that make up the human circulatory
system at least two organ pieces.
2. Explain the structure of blood and its functions.
3. Describes the flow of large and small blood circulation.
4. Distinguish large and small Circulatory system.
5. Mention at least three kinds of abnormalities in all three
organs in the human circulatory system and how to
prevent them.
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