chapter 11
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Chapter 11 Lecture. Chapter 11. The Muscular System: The Appendicular Musculature. Frederic Martini Michael Timmons Robert Tallitsch. Introduction. Appendicular musculature : Muscles responsible for stabilizing the pectoral and pelvic girdles and for moving the upper and lower limbs. - PowerPoint PPT PresentationTRANSCRIPT
HUMAN ANATOMYFifth Edition
Chapter 1 Lecture
Copyright © 2005 Pearson Education, Inc., publishing as Benjamin Cummings
Chapter 11 Lecture
Chapter 11The Muscular System: The Appendicular Musculature
Frederic MartiniMichael Timmons
Robert Tallitsch
Introduction
• Appendicular musculature:– Muscles responsible for stabilizing the
pectoral and pelvic girdles and for moving the upper and lower limbs.
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.
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.
Figure 11.1 Muscles That Position the Pectoral Girdle
Muscles That Position the Pectoral Girdle
Figure 11.2 Muscles That Position the Pectoral Girdle
Muscles That Position the Pectoral Girdle
Figure 11.3 Muscles That Position the Pectoral Girdle
Muscles That Position the Pectoral Girdle
Figure 11.4 Superficial and Deep Muscles of the Trunk and Proximal Limbs
Muscles That Position the Pectoral Girdle
PLAY Pectoral Muscles
Muscles That Position the Pectoral Girdle
• Summary of the muscles that move the pectoral girdle
Figure 11.5a Anterior Arm Figure 11.5b Posterior Arm
Muscles That Move the Arm
Figure 11.6b Anterior Forearm Figure 11.7b Posterior Forearm
Muscles That Move the Forearm and Hand
PLAY Arm Muscles
Muscles That Move the Forearm and Hand
• Summary of the muscles of the upper limb
Figure 11.8a Anterior Forearm Figure 11.8d Posterior Forearm
Superficial Muscles That Move the Hand and Fingers
Figure 11.8b Anterior Forearm Figure 11.8e Posterior Forearm
Middle Layer of Muscles That Move the Hand and Fingers
Figure 11.8c Anterior Forearm Figure 11.8f Posterior Forearm
Deep Muscles That Move the Hand and Fingers
PLAY Forearm Muscles
Muscles That Move the Hand and Fingers
• Summary of the muscles located in the forearm
[insert fig 11.9a[insert fig 11.9d
Figure 11.9a Posterior Right Hand Figure 11.9d Anterior Right hand
Intrinsic Muscles of the Hand
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.
Figure 11.10a Deep Posterior Hip Figure 11.10c Gluteal Muscles
Muscles That Move the Thigh: Lateral Rotators and Extensors
Figure 11.11a Deep Anterior Hip
Muscles That Move the Thigh: Adductors and Flexors
PLAY Hip Muscles
Adductors and Flexors of the Thigh
• Summary of the muscles acting on the hip
Figure 11.12b Anterior Thigh Muscles Figure 11.13a Lateral Thigh
Muscles That Move the Leg: Extensors
Figure 11.13b Medial Thigh Muscles Figure 11.14a Posterior Thigh
Muscles That Move the Leg: Flexors
PLAY Thigh Muscles
Muscles That Move the Leg
• Summary of the muscles acting on the knee
Figure 11.15a Superficial Sura Figure 11.15c Deep Sura
Muscles That Move the Foot and Toes
Figure 11.16a Medial Leg Figure 11.16b Lateral Leg
Muscles That Move the Foot and Toes
Figure 11.17a Anterior Leg
Muscles That Move the Foot and Toes
Figure 11.17 Anterior Leg
Muscles That Move the Foot and Toes
PLAY Leg Muscles
Muscles That Move the Foot and Toes
• Summary of the muscles in the leg
Figure 11.18a Dorsal Foot
Intrinsic Muscles of the Foot
Figure 11.18c Sectional Foot Figure 11.18d Superficial Plantar View
Intrinsic Muscles of the Foot
Figure 11.18e Deep Foot Figure 11.18f Superficial Plantar View
Intrinsic Muscles of the Foot
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.
Figure 11.19a,b,d,e Musculoskeletal Compartments of the Upper Limb
Compartments of the Upper Limb
Figure 11.19c,f Musculoskeletal Compartments of the Upper Limb
Compartments of the Upper Limb
Figure 11.20a-d Musculoskeletal Compartments of the Lower Limb
Compartments of the Lower Limb
Figure 11.20e Musculoskeletal Compartments of the Lower Limb
Compartments of the Lower Limb