1. Healthy Muscles Matter!
Muscles of the Body
Healthy Muscles Matter!

2. Facts About Muscles The body has more than 600 muscles
Muscles help you move, lift things, pump blood, and help you breathe
Healthy muscles let you move freely and keep the body strong

3. Maintaining Healthy Muscles
Physical activity including walking, jogging, lifting weights, dancing, and playing sports
Eat a healthy diet containing a lot of fruit, vegetables, lean protein, whole grains, and low fats
Prevent injuries by warming up, cooling down, and wearing proper gear

4. Muscle Function
The main function of muscles is movement by generating force

5. Body Movements Flexion and Extension
Flexion: decreases angle between the bones
Extension: increases angle between the bones

6. Body Movements Abduction and Adduction
Abduction: move away from the midline
Adduction: move toward the midline

7. Major Muscles and Muscle Groups
These are muscles that typically benefit from exercise, specifically resistance training.

8. Trapezius (Traps)
Main function is to stabilize or move the scapula (shoulder blade)

9. Deltoids
Responsible for arm movement, particularly elevation and abduction

10. Pectorals (Major & Minor) (Pecs)
Pecs are responsible for movement of the shoulder joint

11. Biceps
The biceps supinate the forearm and flex the arm at the elbow

12. Triceps
Triceps extend the arm at the elbow

13. Abdominals (Abs)
Abs support posture, bend the trunk, and protect internal organs

14. Gluteal Muscles (Glutes)
Glutes provide shape of the buttocks and extend and rotate the hip

15. Quadriceps (Quads)
Extends the leg at the knee and flexes the hip

16. Hamstrings
Hamstrings flex the leg at the knee and extend the hip

17. Calves
Calves flex the ankle and curl the toes