The document explains how the digestive, respiratory, and circulatory systems work together to maintain the body's functions by breaking down food, supplying oxygen, and transporting nutrients. It details the processes of each system, including how the digestive system absorbs nutrients, the respiratory system facilitates gas exchange, and the circulatory system transports blood and waste. Overall, these systems are interconnected, ensuring energy maintenance and waste removal in the body.

2. SUBMITTED BY : GROUP A
( WANIYA AHMED, MEHLAB, MUSAB &
HARIS)
How digestive system
respiratory system
circulatory system work
together

3. Digestive System
Function:
Breaks down food into
nutrients (like glucose)
that the body can use.

4. Mouth:
Chews food and begins
breaking it down.

5. Stomach:
Further digests food with
acids and enzymes
.

6. Small Intestine:
Absorbs nutrients into the
blood.

7. Connection with
circulatory Systems:
Nutrients are absorbed into
the bloodstream in the small
intestine and transported by
the circulatory system
throughout the body.

8. Respiratory System
Function:
Supplies oxygen to the blood and
removes carbon dioxide from it.

9. Process:
Inhalation:
Brings oxygen into the lungs.
.

10. Gas Exchange:
Oxygen enters the bloodstream
through the lung’s alveoli, while
carbon dioxide (waste) exits.

11. Exhalation:
Expels carbon dioxide.

12. Connection with respiritory Systems:
 The circulatory system carries oxygen from
the lungs to body tissues and returns carbon
dioxide to the lungs to be exhaled.

13. Circulatory System
Function:
 Transports nutrients, oxygen,
and waste products throughout
the body.

14. Process:
Heart pumps oxygen-rich blood
from the lungs and nutrient-rich
blood from the digestive system
to body cells.

15. Collects waste products like
carbon dioxide to be expelled.

16. Connection with Other Systems:
Delivers nutrients from the
digestive system and oxygen
from the respiratory system to
cells. Returns carbon dioxide
and other wastes to be
removed from the body.

17. summary
These systems rely on each
other to maintain energy and
remove waste, ensuring the
body functions smoothly.

18.  A Quick Recap
The respiratory system helps bring oxygen
into our body.
☐ True
☐ False
What happens to the oxygen we breathe in?
a) It goes into our stomach.
b) It goes into our lungs and then into our
blood.
c) It goes out right away.

19. The circulatory system helps move blood around
our body.
☐ True
☐ False
Blood helps carry oxygen and nutrients to different
parts of the body.
☐ True
☐ False

20. Thank you