This presentation was made for year 9 students.

1. The transport system of the body

3. Function:
transports
oxygen, nutrients, hormones, and cellular
waste products throughout the body.

4. The Heart

5. The Heart
a muscular pumping organ
located between the lungs
behind the sternum.
It is the body’s hardest-
working organ and only about
the size of a closed fist.

7. Valves in the heart
Act to prevent blood from flowing backwards
Slam shut every time the heart contracts to build pressure and
drive blood forwards
http://youtu.be/JA0Wb3gc4mE

8. CHORDAE
“The heart strings”
 Tether the valve to the heart wall
like parachute strings
 Hold the valve in place

11. Capillary facts:
>10 billion capillaries
barely the diameter of a single
red blood cell
If all the capillaries in your body
were placed end to end, they
would circle the globe

12. Fibrous
Connective
Tissue shows
that every cell
is not far from
a capillary
http://bcrc.bio.umass.edu/histology/?q=n
ode/233&size=_original

13. Blood vessels preserved in the hand

16. Blood
 A type of connective tissue
 Made up of a base fluid called
plasma
 Erythrocytes (RBC)
 Leukocytes (WBC)
 Platelets
 Dissolved chemicals such as
glucose, fatty
acids, proteins, amino
acids, hormones,