,,,

2. The role of physics in
humans body
Laiba
Noor
Mahnoor
Areeba
Imtishal
Presented to:
o Mam Maida
Presented by:

3. o Musculoskeletal system
o Role in Human heart
o Role in Human eyes
o Role in Human ear
o Role in Human brain
Outline

4.  What is Musculoskeletal system?
The role of physics in Musculoskeletal system

6. Function:
•Supports body structure, protects
internal organs, and facilitates
movement.
Bones: 206
• Framework providing structural support and protection.
Muscles:600
• Responsible for movement through contraction and relaxation.
Joints:360
• Connections between bones, enabling flexibility and motion.

7. The role of the physics in Musculoskeletal system
 Support
 stability
 Force
 Energy transfer
Newton laws play important role in it….

8. Support and stability
Gravity
Every thing that has mass is in the grass
 What you think about the Mass of the body
 what you think about the Weight of the body

9. According to
Newton
Weight on the earth for mass of 20kg
• W=mg
• W=20*9.8
• W=196N
Weight on the moon for mass of 20 kg
• W=mg
• W=20*1.625
• W=32.5N

11. Stability of body
Center of gravity
Any point on the body at which all
the weight of the body acts
When will the body be stable
When the line of gravity passes
through the base body is balanced.

12. Force in the Human Body:
•Muscular Forces: Muscles in the human body generate
force to produce movement. Muscular force is
responsible for actions such as lifting, pushing, and
pulling.
•Contact force
•Newton third law valid.

13. Energytransfer
Law of conservation of energy
Energy cannot be destroyed or created
it is transfer from one shape to another
o Running
o Pushing