The human musculoskeletal system consists of 206 bones and various muscles that enable movement and support body shape. The skeleton protects vital organs and is categorized into three groups: head bones, extremities, and torso bones. Key components include the skull, spine, and pelvic bones, each serving specific functions in protection and mobility.

1. THE
MUSCULOSKELETAL
SYSTEM

2. IMAGINE WHAT YOU
WOULD LOOK LIKE IF
ALL YOUR BONES
WERE TAKEN OUT
FROM YOUR BODY?

3. WHY DO YOU THINK
YOUR SKELETON IS
IMPORTANT?

4. THE BONES IN OUR
BODY
•Humans have got an internal skeleton. It
is
•made of 206 different bones.
•Infant - 300 or more bones
•Bones are rigid and hard.

5. THE MUSCULOSKELETAL
SYSTEM
•It is composed of many muscles and
bones.
•It lets you move your body parts and go
from one place to another

6. THE FUNCTIONS
SKELETON
• It supports the body and
helps to keep its shape.

7. • It protects the body’s soft
organs, like the brain, the
lungs and the heart.

8. • Bones can move because they
are connected to muscles.
• So movement is another
function of the skeleton.

9. BONES
• Bones can be different shapes and sizes.
• There are long bones, short bones, flat bones
• and cylindrical bones.

10. SKULL
Flat, thick and
very strong bones.

11. EAR
BONES
The smallest bones
in the body.

12. CLAVICLE
collarbone

13. SCAPULA
Shoulder blade

14. STERNUM
Breast bone

15. STERNUM
Breast bone

16. VERTEBRAE
Back bone

17. PELVIS
Hip bone
The biggest bone in
the body

18. FEMUR
Thigh
The longest bone in
the body.

19. TIBIA AND
FIBULA
legs

20. CRANIUM
part of the skull that
encloses and protects
the brain.

21. FACIAL
BONES
protect the structures
connected to the eyes,
nose, mouth and ears

22. RIB CAGE
wall of the chest that
encloses the heart and
lungs

23. VERTEBRAL
COLUMN
protects the spinal
cord which is located.

24. WE CAN PUT THE HUMAN
BONES INTO THREE GROUPS
1. Bones in the head.
2. Bones in the extremities (arms and legs.)
3. Bones of the torso.

25. SKULL OR
CRANIUM

26. THE BONES IN
THE TORSO
ARE
THE SPINE
THE STERNUM
THE RIBS

27. THE SPINE IS
FORMED BY 33
VERTEBRAE