Primary project

1. Respiratory
system
BY IVAN LOPEZ-DAVILA VAZQUEZ

2. WHAT DOES IT DO?
IT COLLECTS OXYGEN FROM AIR,AND OXYGEN IS
MIX WITH NUTRIENTS TO PRODUCE ENERGY.
IT EXPELS THE CARBON DIOXIDE THAT OUR BODY
DOESN'T NEED.

3. FIRST,AIR
ENTERS
THROUGH
OUR NOSE
AND
MOUTH.

4. THEN,IT
GOES
DOWN THE
PHARYNX
AND
TRACHEA.

5. THE
TRACHEA
IS A LONG
TUBE THAT
DIVIDES
INTO TWO
TUBES
CALLED
BRONCHI.

6. THE BRONCHI
ARE DIVIDED
INTO LOTS AND
LOTS OF
BRONCHIOLES.
BRONCHIOLES
ARE LIKE
BRANCHES

7. AT THE END OF
BRONCHIOLES
WE CAN FIND
ALVEOLI.ALVEO
LI ARE
COVERED WITH
CAPILLARES.
THEY ARE LIKE
PICTURES
SOME ARE RED
AND SOME ARE
BLUE.

8. IN THE
ALVEOLI THE
EXCHANGE OF
GASES TAKES
PLACE:THE
RED
CAPILLARES
ABSORB
OXYGEN AND
THE BLUE
ONES ABSORB
CARBON
DIOXIDE.

9. FINALLY,THE
CARBON
DIOXIDE IS
RELEASED.

10. DO YOU HAVE ANY QUESTIONS?

11. THANKS
FOR
WATCHING