1. Characteristics common to muscle tissue
Muscular System
Characteristics common to muscle tissue
Contractility: ability of the muscle to shorten.
Extensibility: ability of muscle to lengthen.
Elasticity: ability of muscle to return to normal size.
Atrophy: is the wasting of muscle tissue
Hypertrophy: is the increase in size of muscle tissue.
Controlled by nerve stimuli.
Fed by capillaries.

2. Different types muscle tissue
Muscular System
Different types muscle tissue
Skeletal Muscles (striated or voluntary muscles)
are those which attach to bones and have the main function of contracting to facilitate movement of our skeletons.

3. Different types muscle tissue
Muscular System
Different types muscle tissue
Smooth muscle
(Unstriated) Involuntary muscle due to our inability to control its movements.
Found in the walls of hollow organs such as the stomach, esophagus, bronchi and in the walls of blood vessels.

4. Different types muscle tissue
Muscular System
Different types muscle tissue
Cardiac muscle only in the walls of the heart.
Similar to:
skeletal muscle -striated
smooth muscle- involuntarily controlled

5. Structure of skeletal muscle Structure of skeletal muscle
Muscular System
Structure of skeletal muscle
Structure of skeletal muscle

6. Structure of skeletal muscle Structure of skeletal muscle
Muscular System
Structure of skeletal muscle
Structure of skeletal muscle
Epimysium: This is the connective tissue wrap just under the deep fascia that surrounds the entire muscle Perimysium: This connective tissue surrounds each individual fascicle (bundle of muscle fibers). Endomysium: This is the connective tissue
wrapped around each
individual muscle cell (fiber).
Myofibrils: threadlike fibrils
that make up the contractile
part of a striated muscle fiber. 
skeletal muscle structure

7. Structure of skeletal muscle Structure of skeletal muscle
Muscular System
Structure of skeletal muscle
Structure of skeletal muscle
Muscle fibers are made up of a group of myofibrils.
Myofibrils contain myofilaments.
The myofibrils have distinct, repeating microanatomical units, termed sarcomeres, which represent the basic contractile units of the muscle fiber/cell (myocyte).
Myofilaments (actin & myosin)
are responsible for muscle
movement.

8. Structure of skeletal muscle
Muscular System
Structure of skeletal muscle

9. Origin and insertion of muscles
Muscular System
Origin and insertion of muscles
Origin: the point where the tendon attaches to the Stationary bone which does not move during muscle action.
Insertion: the point where the tendon attaches to the movable bone which moves during an action.
e.g. Action of biceps muscle: Scapula is origin (Proximal point) and radius is the insertion. (distal point)
Link for origin & insertion of muscles

10. Muscular System Anterior muscles deltoid pectoralis major & minor
iliopsoas
sartorius
quadriceps group
(rectus femoris, vastus intermedialis,
vastus medialis, vastus lateralis.)
Tibialis anterior
Abdominus rectus
External obliques
Biceps brachii

11. Muscular System

12. Muscular System

13. Muscular System

14. Muscular System

15. Muscular System

16. Muscular System Rectus Femoris Origin – inferior pelvis
Vastus Lateralis
Vastus Intermedius
Vastus Medialis
Origin – proximal femur
Rectus Femoris Actions: flex hip, extend knee (two joint muscle)
Vastus Lateralis
Vastus Intermedius Action: extend knee (single joint muscle)
Vastus Medialis

17. Muscular System

18. Muscular System
Pubic symphysis

19. Muscular System

20. Muscular System

21. Muscular System Posterior Muscles Trapezius triceps brachii
latissimus dorsi
gluteus maximus
hamstrings group (biceps femoris,
semitendinosus, semimembranosus)
gastrocnemius
soleus
erector spinae

22. Muscular System
Base of skull
(occipital protuberance)

23. Muscular System

24. Muscular System

25. Muscular System

26. Muscular System
Lateral Hamstrings
Medial Hamstrings

27. Two Joint Muscle

28. One Joint Muscle