Transcript Flowers - michaelsettle

The
Circulatory
System
!!!!!
• http://kidshealth.org/kid/htbw/CSmovie.htm
l?tracking=81347_A
What is it?
The organ system the circulates blood
throughout the body
What does circulate mean?
To move or flow in a circle
Functions of The Circulatory
System
1. Blood Cells carry energy/glucose (from
food person eats) and Oxygen (that
person breathes in) to cells all over the
body
2. Blood takes Carbon Dioxide and other
waste out of cells
We all know that oxygen is the key to
living. It's in the air you breathe, in your
lungs and in your blood. What you might
not know is how oxygen gets into your
blood and how the blood carries oxygen
through your body.
How does the oxygen get in the
blood?
• You breathe air in through your nose and
mouth. It then makes its way into your
lungs . Oxygen then sticks to red blood
cells as they pass through the lungs on
their path throughout the body - now the
oxygen is in the blood.
How does energy/glucose from
food get into you blood?
Glucose: is the main sugar found in blood,
taken from the food we eat.
Once almost fully digested, food moves
through the intestines, the nutrients are
absorbed through the walls of the
intestines and put into the blood.
3 Parts of Circulatory System
1. Heart
2. Blood vessels
3. Blood
3 Parts of Circulatory System
1. The heart pumps the blood.
2. The blood vessels are tubes that carry blood.
3. The blood carries oxygen & nutrients to body
cells.
Parts of the Circulatory System
HEART:
Muscular organ that pumps
blood all around the body.
http://www.bostonscientific.com/
templatedata/imports/HTML/C
RM/heart/interact_6.html
The Heart
The heart has 4 chambers (sections)
Remember Functions of Circulatory
System?
• Blood carries Oxygen to parts of the body
• The lungs work with the heart to do this
Blood with oxygen in it is shown as red
Blood without oxygen is shown as blue
Red = blood has oxygen in it
Blue= blood without oxygen
Blood Flow Visual
• http://www.bostonscientific.com/templated
ata/imports/HTML/CRM/heart/interact_5.ht
ml
Blood Flow Steps
Step 1. Blood returns to
your heart from your
body and lungs
Oxygen-poor blood from
your body flows into
your right atrium.
At the same time,
oxygen-rich blood
from your lungs flows
into your left atrium.
• Step 2. Blood flows
from the upper to the
lower chambers.
– Blood flows from your
right atrium into your
right ventricle.
– At the same time,
blood flows from your
left atrium into your left
ventricle.
Step 3.
Blood is pumped back
out to your lungs and
body.
– Your right ventricle
pumps blood out of
your heart to your
lungs, where the
blood's oxygen supply
is replenished.
– At the same time, your
left ventricle pumps
blood — once again
full of oxygen — out of
your heart to your
body.
To body
To lungs
For oxygen
Blood Flow Poster
Task: create a poster on 8x11 paper
explaining how blood flows between the
heart, lungs and body
Exit
1. Which of the following is not a function of the
circulatory system?
A. Take oxygen to cells
B. Remove carbon dioxide from cells
C. Take energy to cells
D. Rake water to cells
2. Name the 1 of the 3 parts of the circulatory
system
Thursday Warm Up
1.
Thursday
Textbook 66B for Heart Foldable
1. Label each chamber on the outside
Parts of the Circulatory System
BLOOD VESSELS:
Blood travels through your
body in hollow tubes called
blood vessels.
– There are 3 types of blood
vessels: arteries, veins,
capillaries
Arteries
• A artery is a blood vessel that carries
oxygenated blood away from the heart.
• Biggest type of blood vessel
Veins
• A blood vessel that carries blood back to
the heart.
Capillaries
• A narrow blood vessel that connects
arteries with veins.
Parts of the Circulatory System
BLOOD:
Special tissue that carries
important gases and
nutrients to and from all
parts of your body.
– Made up of 3 different
types of cells that sit in
a liquid called plasma
Plasma
• The liquid that makes up blood. Carries
minerals and waste.
• About 60% of blood is plasma.
Red Blood Cells
• Blood cells that pick up oxygen and
transport oxygen throughout the body.
• Hemoglobin is the compound that makes
these cells red.
White Blood Cells
• Blood cells that help your body fight
infections
Platelets
• Cell fragments that help to form clots when
a blood vessel is damaged.