Powerpoint presentation

2. Fill the blank/s with correct
words to complete the paragraph
correctly.
When you breathe in, or _______, the
diaphragm muscle _________. Inhaling
moves the diaphragm down and
________ the chest cavity.
Simultaneously, the ribs move up and
increase the size of the chest cavity.
inhale
contracts
expands

3. There is now more space and less air
pressure inside the lungs. Air pushes in
from the outside where there is a
_______ air pressure. It pushes into the
lungs where there is a lower air pressure.
When you breathe out, or ________, the
diaphragm muscle_______.
higher
exhale
relaxes

4. The diaphragm and ribs return to their
original place. The chest cavity returns to
its_______________. There is now less
space and greater air pressure inside the
lungs. It pushes the air outside where
there is lower air pressure.
original size

6. 1.nourish
2.circulate
3.transport
4.oxygenated
5.deoxygenated

8. QUESTIONS
1. How does Circulatory System
function?
2. What are components of
Circulatory System?
3. Explain the function of each
component.

9. The circulatory system is the
life support structure that
nourishes your cells with
nutrients from the food you eat
and oxygen from the air you
breathe.

10. CIRCULATORY SYSTEM
Pumps blood
throughout the body

11. CIRCULATORY SYSTEM
HEART BLOOD VESSELS BLOOD
ARTERIES VEINS CAPILLARIES
Carries the blood through
out the body
Pumps blood
throughout the body

12. Identify the part of CS
described in each number.
1. pumps the blood throughout the body
2. carries the blood throughout the body
3. carry deoxygenated blood to the
heart
4. the actual site where gases and
nutrients are exchange
5. carries the materials throughout
the body