Blood and blood vessels work together to transport nutrients, oxygen, hormones, and waste products throughout the body. The three main types of blood vessels are arteries, which carry blood away from the heart; veins, which carry blood toward the heart; and capillaries, where important exchanges occur. Blood functions to transport oxygen, fight infections, regulate temperature, clot wounds, and transport nutrients, carbon dioxide, and other substances. Red blood cells carry oxygen, white blood cells fight infections, platelets help with clotting, and plasma transports nutrients and waste.

1. Blood and Blood Vessels
By: Mellisa
Sean Hew
Daniel
Rachel Soh

2.  Chocolate can actually help the circulatory
system. According to the Northwest Health
Sciences University, chocolate contains cocoa
which has antioxidants that help protect the
cardiovascular system. The antioxidants help
lower blood pressure and help reduce deaths
related to cardiovascular disease. A 4-5 gram
serving per day is enough to gain the benefits
from the antioxidants found in cocoa.

3. The main blood vessels are
Arteries, Veins and Capillaries

4. Arteries~
• Carries blood AWAY form the heart
• Two main arteries are pulmonary
arteries and systemic arteries

5. • Pulmonary arteries
carry blood from Arteries~
the heart to the
lungs where the
blood picks up
oxygen.
• Systemic arteries
deliver blood to
the rest of the
body.
• Aorta is the main
systemic artery
and the largest
artery of the
body. It supply
blood to the head

6. Veins~
• Carries blood TO the heart
• Four main veins are pulmonary, systemic,
superficial, and deep veins.

7. • Pulmonary veins
transports
oxygenated blood
from the lungs to
the heart. Veins~
• Systemic veins
return
deoxygenated blood
from the rest of
the body to the
heart.
• Superficial veins are
located close to the
surface of the skin
and are not located
near a
corresponding
artery
• Deep veins are

8. Capillaries~
• Important exchanges of the
circulatory system occurs here
• The capillaries are a single cell in
diameter to aid fast and easy
diffusion of gases, sugars and other
nutrients to surrounding tissues.

9.  Blood is about twice as thick as water,
thanks to all the cells and other bits that
float in it.

10. Function of Blood
• Carries oxygen to cells
• Carries waste products like lactic acid
away from cells
• White Blood Cells fight against
diseases in the body

11. Function of Blood
• Maintaining a good circulation, the blood
flow keeps the body temperature at around
37oC.
• Blood transport nutrients from the
digestive system to the cells in our body
• Substances like platelets and fibrin in the
blood help to clot wounds

12. Red Blood Cells~
• They transport oxygen from the lungs
to all of the living tissues of the body
and carry away carbon dioxide.
• Hemoglobin is the gas that transport
proteins and make up 95% of each
red cell

13. • They seek out,
identify, and bind White Blood Cells~
to alien protein
on bacteria, viruse
s, and fungi so
that they can be
removed
• They also have the
function of getting
rid of dead or
dying blood cells
as well as foreign
matter such as
dust

14. Platelets~
• Platelets work with blood clotting
chemicals at the site of wounds
• Platelets also fight diseases by
releasing proteins and kill invading
bacterias

15. Plasma~
• As the heart pumps blood to cells
throughout the body, plasma brings
nourishment to them and removes the
waste products of metabolism
• Metabolism=The chemical and physical
processes continuously going on in the
cells of living organisms. These are the
processes by which energy and matter
are made available for use by the cells
of an organism. Heat is a byproduct of
metabolism.