1. 1.05 Understand the functions and disorders of the muscular system

2. 1.05 Understand the functions and disorders of the muscular system
What are the characteristics of muscles?
What are the functions of the muscular system?
What are common disorders of the muscular system?
How are muscular disorders treated?
How does the muscular system relate to the body’s support and movement?
1.05 Understand the functions and disorders of the muscular system

3. Characteristics of Muscles
Contractibility
Excitability
Extensibility
Elasticity
1.05 Understand the functions and disorders of the muscular system

4. Characteristics of Muscles
Contractibility
1.05 Understand the functions and disorders of the muscular system

5. Characteristics of Muscles
Contractibility
Myoneural stimulation +
contraction of muscle proteins =
movement and heat
1.05 Understand the functions and disorders of the muscular system

6. Characteristics of Muscles
Contractibility
Neurotransmitter at site of muscle stimulus.
The sodium-potassium pump of the membrane of a muscle cell.
The purpose of this slide is to illustrate the complexity of the process of movement.
1.05 Understand the functions and disorders of the muscular system

7. Characteristics of Muscles
Excitability
1.05 Understand the functions and disorders of the muscular system

8. Characteristics of Muscles
Extensibility
1.05 Understand the functions and disorders of the muscular system

9. Characteristics of Muscles
Elasticity
1.05 Understand the functions and disorders of the muscular system

10. Characteristics of Muscles
Contractibility
Excitability
Extensibility
Elasticity
1.05 Understand the functions and disorders of the muscular system

11. Muscle Tone Discuss muscle tone. Atrophy: a- ________ -trophy ________
Hypertrophy:
hyper- _______ -trophy ________
1.05 Understand the functions and disorders of the muscular system

12. 1.05 Understand the functions and disorders of the muscular system
Muscle Tone
John just got a cast off his leg. His calf muscle on the affected leg is 1” smaller in diameter than his other calf muscle.
What happened?
How do you explain this to him?
1.05 Understand the functions and disorders of the muscular system

13. Muscle Tone Exercise & Training
What are the advantages of exercise?
Are there any disadvantages of exercise?
1.05 Understand the functions and disorders of the muscular system

14. 1.05 Understand the functions and disorders of the muscular system
Muscle Fatigue
Discuss muscle fatigue:
What causes muscle fatigue?
How does the body correct muscle fatigue?
Is muscle fatigue dangerous? Why / why not?
Discuss aerobic and anaerobic exercise.
Give examples of each.
1.05 Understand the functions and disorders of the muscular system

15. Functions of the Muscular System
What are the functions of the muscular system?
1.05 Understand the functions and disorders of the muscular system

16. Movement: Skeletal Muscle
Receptors in muscles provide the brain with information about body position and movement.
The brain controls the contraction of skeletal muscle.
1.05 Understand the functions and disorders of the muscular system

17. 1.05 Understand the functions and disorders of the muscular system
Movement
Discuss the mechanism of skeletal muscle movement to include:
Point of origin
Point of insertion
Identify the:
Prime mover
Antagonist
Synergists
1.05 Understand the functions and disorders of the muscular system

18. Movement: Digestive System
The nervous system regulates the speed at which food moves through the digestive tract.
1.05 Understand the functions and disorders of the muscular system

19. Movement: Circulatory System Heartbeat
The nervous system and hormones regulate the speed at which the heart beats.
1.05 Understand the functions and disorders of the muscular system

20. 1.05 Understand the functions and disorders of the muscular system
Posture
How does the muscular system effect posture?
1.05 Understand the functions and disorders of the muscular system

21. 1.05 Understand the functions and disorders of the muscular system
Body Heat
What is the body’s response to cold? Why?
How is this response helpful?
How does the body respond to exercise? Why?
1.05 Understand the functions and disorders of the muscular system

22. 1.05 Understand the functions and disorders of the muscular system
Myopathy
Myo-
-pathy
1.05 Understand the functions and disorders of the muscular system

23. 1.05 Understand the functions and disorders of the muscular system
Fibromyalgia
Discuss the pictures and how they relate to fibromyalgia.
Cause
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

24. 1.05 Understand the functions and disorders of the muscular system
Hernia
Discuss hernias.
Causes
Locations
Symptoms
Diagnosis
Treatment
Prevention
1.05 Understand the functions and disorders of the muscular system

25. Muscle Spasms (Involuntary hypertonicity)
Discuss muscle spasms.
Causes
Locations
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

26. 1.05 Understand the functions and disorders of the muscular system
Muscular Dystrophy
Discuss the picture and how it relates to muscular dystrophy.
Cause
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

27. 1.05 Understand the functions and disorders of the muscular system
Myasthenia Gravis
Discuss the picture and how it relates to myasthenia gravis.
Cause
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

28. 1.05 Understand the functions and disorders of the muscular system
Strain
What happened here?
What symptoms is this man having? Why?
How will he treat them?
What is his prognosis?
1.05 Understand the functions and disorders of the muscular system

29. 1.05 Understand the functions and disorders of the muscular system
Tendonitis
Discuss the pictures and how they relate to tendonitis.
Cause
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

30. 1.05 Understand the functions and disorders of the muscular system
Tetanus
Discuss the picture and how it relates to tetanus.
Cause
Symptoms
Diagnosis
Treatment
Prognosis
1.05 Understand the functions and disorders of the muscular system

31. 1.05 Understand the functions and disorders of the muscular system
What are the characteristics of muscles?
What are the functions of the muscular system?
What are common disorders of the muscular system?
How are muscular disorders treated?
How does the muscular system relate to the body’s support and movement?
1.05 Understand the functions and disorders of the muscular system