1. CIRCULATORY
SYSTEM
the system that circulates blood and
lymph through the body, consisting
of the heart, blood vessels (veins
and arteries), and lymphatic vessels
and glands
https://www.youtube.com/watch?v=oE8tGkP5
_tc
http://kidshealth.org/kid/closet/movies/CSmo
vie.html?tracking=59983_C#cat20449
2. Heart, Arteries, Veins, and Blood Cells
Heart- Pumps blood to the rest of your body
Arteries- take blood away from the heart to the
body (RED)
Veins- bring blood back to the heart from the
body (BLUE)
Red Blood Cells- Main part of blood – these cells
take Oxygen from lungs and bring to body
White Blood Cells- help the body fight against
infection and diseases
Platelets- help your body clot and repair itself so
you won’t bleed too much
Plasma- pale yellow liquid that holds the blood
cells
3. https://www.youtube
.com/watch?v=xpsGs
fuffEM
This is a WHITE
BLOOD CELL
and it’s in your
blood!
White Blood cells are
the cells of the
immune system that
help protect the body
against both
infectious disease
and foreign invaders
7. The primary purpose of plasma
is to transport nutrients,
hormones, and proteins to the
parts of the body that need it.
Cells also deposit their waste
products into the plasma, and
the plasma in turn helps
remove this waste from the
body. Blood plasma also
ushers the movement of all the
elements of blood through the
circulatory system.
• Plasma can be used to treat people who have suffered from
burns, shock, trauma, and other medical emergencies.
8.
9. • 50% of your heart’s weight
is muscle
• Cardiac muscle never gets
tired
• 70 beats per minute at rest
• 70 milliliters of blood
pumps every minute
• 4 chambers
• Muscles squeeze blood
through chambers
• Valves keep blood from
flowing back into heart
• Heart animation:
http://kidshealth.org/teen/your_body/body_basics/heart.html#cat20121
10. Veins appear blue because light, penetrating the
skin, is absorbed and reflected back to the eye.
Since only the higher energy wavelengths can do
this, only higher energy wavelengths are seen. And
higher energy wavelengths are what we call "blue."
https://www.youtube.com/watch?v=lk0HMqwreIo
11. • Blood pressure is measured as systolic (sis-TOL-ik) and diastolic (di-ah-STOL-ik) pressures. "Systolic"
refers to blood pressure when the heart beats while pumping blood. "Diastolic" refers to blood
pressure when the heart is at rest between beats.
• Your body is very sensitive to changes in blood pressure. For example, if you stand up quickly,
your blood pressure may drop for a short time. Your body adjusts your blood pressure to make
sure enough blood and oxygen are flowing to your brain, kidneys, and other vital organs.
• Most forms of hypotension happen because your body can't bring blood pressure back to normal
or can't do it fast enough.
• Some people have low blood pressure all the time. They have no signs or symptoms, and their
low blood pressure is normal for them.
Category
Systolic
(top number)
Diastolic
(bottom number)
Normal Less than 120 And Less than 80
Prehypertension 120–139 Or 80–89
High blood pressure
Stage 1 140–159 Or 90–99
Stage 2 160 or higher Or 100 or higher
12. Q: If you wear a bracelet too tight and it cuts
off circulation, will your hand fall off?
A: The pressure around your wrist causes the blood to not be able
to flow through your hand. Your hand will start to turn purple,
showing that oxygen-rich blood is not coming into you hand. If
you notice this and take the bracelet off, your blood will begin to
flow normally and you will be fine. If the object was on you for
too long, cells would die and not be able to regrow. Then your
hand would have to be amputated. (cut off)
13. Q: How
long do
you have
to be
outside
before
frostbite
sets in and
your body
parts start
to fall off?
15. ~ Types of Blood ~
There are 8 different types of blood. They are given names based on having
or not having “antigens”. Antigens are substances that can cause your body
to reject the new blood.
•Group A – has only the A antigen on red cells (and B antibody in the plasma)
•Group B – has only the B antigen on red cells (and A antibody in the plasma)
•Group AB – has both A and B antigens on red cells (but neither A nor B antibody in the
plasma)
•Group O – has neither A nor B antigens on red cells (but both A and B antibody are in
the plasma)
(+) blood types have a third antigen called the Rh factor.
(-) blood types do NOT have the third antigen called the Rh factor.
Rh (+) blood has to be given to Rh (+) patients
Rh (-) blood has to be given to Rh (-) patients
