1. HUMAN ANATOMY Fifth Edition Chapter 1 Lecture Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings Chapter 11 Lecture Chapter 11 The Muscular System: The Appendicular Musculature Frederic Martini Michael Timmons Robert Tallitsch

2. Introduction Appendicular musculature: –Muscles responsible for stabilizing the pectoral and pelvic girdles and for moving the upper and lower limbs.

3. Introduction Appendicular muscles account for roughly 40% of the skeletal muscles in the body. The two major groups of appendicular muscles are: –The muscles of the pectoral girdle and upper limbs. –The muscles of the pelvic girdle and lower limbs. The functions and required ranges of motion differ greatly between these groups.

4. Muscles of the Pectoral Girdle and Upper Limbs Muscles associated with the pectoral girdle and upper limbs can be divided into four groups: –Muscles that position the pectoral girdle. –Muscles that move the arm. –Muscles that move the forearm and hand. –Muscles that move the hand and fingers.

5. Figure 11.1 Muscles That Position the Pectoral Girdle Muscles That Position the Pectoral Girdle

6. Figure 11.2 Muscles That Position the Pectoral Girdle Muscles That Position the Pectoral Girdle

7. Figure 11.3 Muscles That Position the Pectoral Girdle Muscles That Position the Pectoral Girdle

8. Figure 11.4 Superficial and Deep Muscles of the Trunk and Proximal Limbs Muscles That Position the Pectoral Girdle

9. PLAY Pectoral Muscles Muscles That Position the Pectoral Girdle Summary of the muscles that move the pectoral girdle

10. Figure 11.5a Anterior ArmFigure 11.5b Posterior Arm Muscles That Move the Arm

11. Figure 11.6b Anterior ForearmFigure 11.7b Posterior Forearm Muscles That Move the Forearm and Hand

12. PLAY Arm Muscles Muscles That Move the Forearm and Hand Summary of the muscles of the upper limb

13. Figure 11.8a Anterior ForearmFigure 11.8d Posterior Forearm Superficial Muscles That Move the Hand and Fingers

14. Figure 11.8b Anterior ForearmFigure 11.8e Posterior Forearm Middle Layer of Muscles That Move the Hand and Fingers

15. Figure 11.8c Anterior ForearmFigure 11.8f Posterior Forearm Deep Muscles That Move the Hand and Fingers

16. PLAY Forearm Muscles Muscles That Move the Hand and Fingers Summary of the muscles located in the forearm

17. [insert fig 11.9a [insert fig 11.9d Figure 11.9a Posterior Right HandFigure 11.9d Anterior Right hand Intrinsic Muscles of the Hand

18. Muscles of the Pelvic Girdle and Lower Limbs The muscles of the lower limbs are larger and more powerful than those of the upper limbs. These muscles can be divided into three groups: –Muscles that move the thigh. –Muscles that move the leg. –Muscles that move the foot and toes.

19. Figure 11.10a Deep Posterior HipFigure 11.10c Gluteal Muscles Muscles That Move the Thigh: Lateral Rotators and Extensors

20. Figure 11.11a Deep Anterior Hip Muscles That Move the Thigh: Adductors and Flexors

21. PLAY Hip Muscles Adductors and Flexors of the Thigh Summary of the muscles acting on the hip

22. Figure 11.12b Anterior Thigh MusclesFigure 11.13a Lateral Thigh Muscles That Move the Leg: Extensors

23. Figure 11.13b Medial Thigh MusclesFigure 11.14a Posterior Thigh Muscles That Move the Leg: Flexors

24. PLAY Thigh Muscles Muscles That Move the Leg Summary of the muscles acting on the knee

25. Figure 11.15a Superficial SuraFigure 11.15c Deep Sura Muscles That Move the Foot and Toes

26. Figure 11.16a Medial LegFigure 11.16b Lateral Leg Muscles That Move the Foot and Toes

27. Figure 11.17a Anterior Leg Muscles That Move the Foot and Toes

28. Figure 11.17 Anterior Leg Muscles That Move the Foot and Toes

29. PLAY Leg Muscles Muscles That Move the Foot and Toes Summary of the muscles in the leg

30. Figure 11.18a Dorsal Foot Intrinsic Muscles of the Foot

31. Figure 11.18c Sectional FootFigure 11.18d Superficial Plantar View Intrinsic Muscles of the Foot

32. Figure 11.18e Deep FootFigure 11.18f Superficial Plantar View Intrinsic Muscles of the Foot

33. Fascia, Muscle Layers, and Compartments Dense connective tissue layers provide a structural framework for the soft tissues of the body. The connective tissue fibers of the deep fasciae support and interconnect adjacent skeletal muscles but permit independent movement. The deep fascia extends between the bones and the superficial fascia and separates the soft tissues of the limb into separate compartments.

34. Figure 11.19a,b,d,e Musculoskeletal Compartments of the Upper Limb Compartments of the Upper Limb

35. Figure 11.19c,f Musculoskeletal Compartments of the Upper Limb Compartments of the Upper Limb

36. Figure 11.20a-d Musculoskeletal Compartments of the Lower Limb Compartments of the Lower Limb

37. Figure 11.20e Musculoskeletal Compartments of the Lower Limb Compartments of the Lower Limb