Transcript Heart Power Point Blood Power Point

1• Transports oxygen from the
lungs to body to be used
• Transports carbon dioxide to
the lungs to be removed
2
3• Transports nutrients from
the small intestine to tissues
4 • Fights infections
5
• Transports water from
the digestive system to
the body and lungs
6• Carries waste products
(ie: urea) to kidneys
for removal in urine
7 • Distributes body heat
from internal source to
skin (to get rid of it)
8 • Seals wounds by
forming blood clots
Amazing Heart Facts
• Put your hand on your heart. Where is it?
• Hold out your hand and make a fist.
size of heart: child = 1 fist; adult = 2 fists!
• Your heart beats about 100,000 times in one day and
about 35 million times in a year.
• During an average lifetime, the human heart
will beat more than 2.5 billion times.
•Even at rest, the muscles of the heart work twice as
hard as the leg muscles of a person sprinting
• In one day, the blood travels a total of 19,000
km. That's 4 times the distance across
CANADA from coast to coast.
•When you are resting, it takes 35-40
seconds for the blood to move through
your body. What about when you are
exercising?
approximately 10 seconds
•How much does your heart weigh?
only 2/3 of a pound!
• Give a tennis ball a good, hard squeeze.
You're using about the same amount of force
your heart uses to pump blood out to the body
Aortic Arch
Superior vena cava
Pulmonary Trunk
Coronary artery
Right Atrium
Right Ventricle
Inferior Vena Cava
Coronary Vein
Left Ventricle
The human heart has 4 well developed chambers
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
The right side
of the heart
pumps deO2
blood to the
lungs
The left side
of the heart
pumps O2
blood to the
body
Right Atrium
Receives
deoxygenated
blood from the
body via the
superior & inferior
vena cava.
Left Atrium
Receives
oxygenated
blood from the
lungs via the
pulmonary veins
• When the right atrium contracts, it pushes the blood
through the tricuspid valve and into the right ventricle.
• When the RIGHT
VENTRICLE contracts, BP
forces the TRICUSPID
valve to close.
Right
Ventricle
• The BP forces
PULMONARY VALVE
open & the blood moves
into the PULMONARY
TRUNK.
The PULMONARY
ARTERIES take the deO2
blood to the lungs.
The CO2 is
removed from
the blood and is
replaced with O2.
The PULMONARY
VEINS take the O2
blood to the
heart.
The protein HEMOGLOBIN
binds the oxygen tightly
and carries it to the body
cells
A muscular wall that
separates the right side
of the heart from the left
side.
Keeps the deO2 blood
from mixing with the O2
blood
•It is now possible
to close a hole in
the septum without
surgery.
•This is done using
a new device called
the Cardioseal ™
septal repair
device.
•The surgery takes
approximately 4-5
hours to complete.
• When the left atrium contracts, it pushes the blood
through the bicuspid valve and into the left ventricle.
• When the LEFT
VENTRICLE contracts,
the BICUSPID VALVE is
forced closed.
• Blood is forced through
the AORTIC VALVE and
enters the AORTA.
• The left ventricle has a THICKER
muscle layer. WHY?
Left
Ventricle
Superior Vena Cava
These are the BIGGEST
VEINS!
They bring the deO2
blood back to the heart
so that it can be
pumped to the lungs.
Inferior Vena Cava
Coordination of the Beating
• Heart cells
naturally beat slowly
if ATP is present
• If there was no
coordination, the
heart cells would all
beat randomly
Purkinje
fibres
• Atria beat
from top down,
then pause,
and the
ventricles beat
from bottom
up.
Hardening of the arteries
Cholesterol in the blood can become deposited on the
inside walls of the arteries. This seems to happen faster
in people who:
•Smoke
•Have high blood pressure
•Eat high fat, high cholesterol foods, or, for other
reasons, have high cholesterol
•Are overweight
•Have a lot of tension and stress
•Do not exercise regularly
•Have diabetes and/or family members with a
history of atherosclerosis
The AbioCor Heart is made from titanium metal and a special type of
plastic.
A rechargeable internal battery allows the patient to be completely free of
the external power transmission unit for some period of time.
Normally an external power pack transmits power across the skin.