1. 4 Functions:
1. Produce skeletal movement
2. Maintain posture and body
position
3. Guard the entrances and exits
of the body
4. Transport things through the
body – blood and lymph

2. MUSCLE TERMS
STRIATED
– STRIPED IN
APPEARANCE
NON-STRIATED – NOT
STRIPED IN APPEARANCE

3. The Muscular System
Three basic muscle
types are found in the
body

4. 1. Cardiac muscle
 only in heart
 Striated (striped)
 involuntary
 contracts over a long period
of time

6. 2. Smooth muscle
 found in organs
 Non-striated
 involuntary
 slow, powerful contractions

7. 3. Skeletal muscle
 striated
 voluntary
 multinucleated
 quick, powerful
contractions

9. Anatomy of a Skeletal muscle
•made of specialized cells
called muscle fibers that
contract quickly and
powerfully.

10. Anatomy of a Skeletal muscle
•made of specialized cells called muscle fibers that contract quickly and powerfully.
•Each muscle has thousands to
millions of muscle fibers
bundled together.

11. Anatomy of a Skeletal muscle
•made of specialized cells called muscle fibers that contract quickly and powerfully.
•Each muscle has thousands to millions of muscle fibers bundled together.
•Muscles are attached to bones by
tendons (dense regular
connective tissue).
•Muscle itself is called the belly.

12. tendon
belly

13. Muscles
of the
body

14. 1 Frontals

15. 4 & 13 Sternocleidomastoid muscle

16. 2 Temporalis and Masseter 3

17. Trapezius 14

18. Intercostal

19. 6 Pectoralis
major

20. Deltoids 5

21. Latissimus
dorsi
16

22. Biceps brachii
7

23. 15 Triceps brachii

24. Rectus abdominus 9
External oblique
8

25. 17 Erector spinae

26. 18 Gluteus maximus

27. 10 Adductor longus

28. 12 Quadriceps femoris

29. 19 Hamstrings

30. 11 Sartorius muscles

31. 20 gastrocnemius