The document describes the skeletal and circulatory systems of the human body. It outlines the main bones of the skeletal system, including the skull, ribs, backbone, and bones of the hands and legs. It explains the functions of the skeletal system in protecting organs and enabling movement. It then discusses the circulatory system, including how blood flows through vessels carrying oxygen and nutrients to the body and removing waste, and the role of the lungs and heart in this process. It emphasizes the importance of the circulatory system and taking care of all body systems.

1. UNIT 2 HUMANS
YUVAN KRISHNA
5 JEYAM

2. HUMAN SKELETAL SYSTEM
SKULL
RIBS
BACKBONE
HAND BONE
LEG BONE

3. FUNCTIONS OF THE SKELETAL SYSTEM
THE SKULL PROTECTS OUR BRAIN FROM INJURY

4. THE BACKBONE PROVIDES SUPPORT FOR THE BODY

5. THE RIBS PROTECT THE INTERNAL ORGANS SUCH
AS THE LUNGS AND HEART

6. The bones of the hands and legs provide support
movement

7. POSITIONS OF JOINTS
A JOINT IS A PLACE WHERE TWO OR MORE BONES
ARE JOINED TOGETHER

8. FUNCTIONS OF JOINTS

9. THE BLOOD CIRCULATORY SYSTEM

10. THE LUNGS ARE THE ORGANS WHERE THE EXCHANGE
OF OXYGEN AND CARBON DIOXIDE OCCURS

11. A BLOOD VESSEL IS A TUBE THAT ALLOWS BLOOD
TO FLOW. BLOOD VESSELS TRANSPOT BLOOD TO
THE WHOLE BODY

12. BLOOD FLOWS THROUGH A NETWORK OF BLOOD VESSELS
TO EVERY PART OF THE BODY.BLOOD CARRIES
OXYGEN,NUTRIENTS,WATER AND WASTE
PRODUCTS.WASTE PRODUCTS SUCH AS CARBON DIOXIDE
ARE REMOVED FROM THE LUNGS

13. THE BLOOD CIRCULATARY PATHWAY

14. WHEN WE INHALE THE AIR THAT ENTERS THE LUNGS IS
RICH IN OXYGEN AND IS ABSORBED INTO THE BLOOD
VESSELS.

15. HERE, THE BLOOD IS KNOWN AS BLOOD RICH IN
OXYGEN. THE HEART PUMPS THE BLOOD THAT IS
RICH IN OXYGEN TO THE WHOLE BODY

16. WHEN THE BODY USES UP THE OXYGEN, CARBON
DIOXIDE IS PRODUCED AND ABSORBED INTO THE
BLOOD
HERE, THE BLOOD IS KNOWN AS BLOOD RICH IN
CARBON DIOXIDE.BLOOD RICH IN CARBON DIOXIDE IS
TRANSPORTED TO THE HEART.

17. FROM THE HEART, THE BLOOD RICH IN CARBON
DIOXIDE WILL BE PUMPED TO THE LUNGS. WHEN
WE EXHALE, CARBON DIOXIDE IS REMOVED
FROM THE LUNGS.

18. THE IMPORTANCE OF BLOOD CIRCULATARY
SYSTEM

20. THE RELATIONSHIP BETWEEN THE SYSTEMS
IN THE HUMAN BODY

22. THE IMPORTANCE OF TAKING CARE OF ALL
SYSTEMS IN THE HUMAN BODY

23. PROTECTING THE SYSTEMS IN OUR HUMAN
BODY

24. Thank You