Do Now: Can you use the stethoscope to hear your heart beat?
Count how many times it beats a minute. Hold your breath. Does your
heart beat? Is there any change? Why does it beat? Why do you need
heart to pump? Note observations in your new packet inside the
cover.
Slide 3
Circulatory System The transportation system of the body
Circulatory comes from the word circle Blood circles the body:
heartlungsheart Body cells Another name for the circulatory system
is the cardiovascular system
Slide 4
Major Organs and Tissues of the Circulatory System Heart Blood
Vessels Blood
Slide 5
Why is Circulation Important? The circulatory system transports
oxygen and food to the brain, feet, muscles, and every single part
of the body. It is very important that the circulatory system in
the body keeps going all the time. If it stops, even for a short
time then the body will very quickly die.
Slide 6
Three Functions of the Circulatory System: 1. To move oxygen
and nutrients to all cells of the body 2. To move carbon dioxide
and other wastes out of the cells. 3. To fight disease circulation
song circulation song
Slide 7
Slide 8
Do now: This is a picture of the blood vessels in the body.
Where do you see the most blood vessels? Where do you see fewer
blood vessels? Why do you think this is?
Slide 9
Circulation movement of blood through body
Slide 10
Blood Vessels 3 Kinds of blood vessels Arteries Veins
Capillaries
Slide 11
Arteries Arteries ALWAYS carry blood AWAY from the heart
Slide 12
VEINS carry blood TO the heart
Slide 13
CAPILLARIES connect arteries to veins artery vein Capillaries
are where cells connect to blood. Oxygen, and nutrients are
exchanged for carbon dioxide and wastes.
Slide 14
Special Veins and Arteries The Aorta is the largest artery in
the body -leading from the heart The Vena Cava is the largest vein
in the body, and leads to the heart The pulmonary artery and
pulmonary vein connect the heart to lungs
Slide 15
Two truths and a lie The main parts of the circulatory system
are the heart, blood vessels and lungs. Blood in your body is two
different colors Arteries always carry blood away from the
heart.
Slide 16
What did we learn about the circulatory system with the heart
run around? What were the parts we represented? What do cells use
up to make energy? How does oxygen get from your lungs to your body
cells? What makes blood move? What did we simplify? Cells must
always have energy. If it is used up faster it must be replaced
faster. This means that the heart must ______________
Slide 17
What is the meaning of the cartoon?
Slide 18
The Heart The heart has 4 chambers: atrium ventricle
Slide 19
Parts of the Heart Atrium - upper chamber septum - thick tissue
that separates left and right side of heart valve -flap of tissue
ventricle - lower chamber of heart
Do Now In your packet, describe what is happening on SIDE A of
the handout.
Slide 22
Capillaries Side A Oxygenated blood comes from the heart and
goes through the organ where it becomes de-oxygenated blood.
Slide 23
Describe what is happening on side B of the handout.
Slide 24
Capillaries Side B Shows blood picking up waste and carbon
dioxide from the organ and blood giving the organ water, nutrients
and oxygen. The blood stays in the capillary. Water can go both
ways.
Slide 25
Cardiovascular Blood Flow, Heart anatomy Coronary arteries Step
through blood flow Blood flow Circulation How the heart works
http://www.phschool.com/atschool/phbio/active_art/heart /index.html
Click Cardiovascular, then blood flow electric and also heart
anatomy and anterior heartbeat
Slide 26
Do Now: INB p 63
Slide 27
Circulatory system matching 1. E 2. G 3. I 4. A 5. F 6. C 7. B
8. J 9. D 10. H
Slide 28
Pulmonary artery - carries blood from heart to lungs
Slide 29
Blood is a liquid tissue Blood is a mixture- part liquid and
part solid Plasma is liquid part of blood
Slide 30
Red Blood Cell- contains hemoglobin (iron compound) which
carries oxygen
Slide 31
White Blood Cells fight disease
Slide 32
Platelets - form clots
Slide 33
Gas Exchange The pulmonary blood vessels take the blood from
the heart to the lungs. They drop off wastes and pick up oxygen
Then the blood goes back to the heart
http://www.dnatube.com/video/60 94/Gas-Exchange-in-the-Lungs
Slide 34
Extension Grasshoppers have a heart and blood but no blood
vessels. How can they survive? Hint: What do blood vessels do and
how do you think grasshoppers do this?