6 The Muscular System PART C Power Point

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6 The Muscular System PART C Power. Point® Lecture Slide Presentation by Jerry L.

6 The Muscular System PART C Power. Point® Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Types of Ordinary Body Movements § Flexion § Extension § Rotation § Circumduction §

Types of Ordinary Body Movements § Flexion § Extension § Rotation § Circumduction § Abduction § Adduction Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Body Movements Figure 6. 13 a–c Copyright © 2006 Pearson Education, Inc. , publishing

Body Movements Figure 6. 13 a–c Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Body Movements Figure 6. 13 d Copyright © 2006 Pearson Education, Inc. , publishing

Body Movements Figure 6. 13 d Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Special Movements § Dorsiflexion § Plantar flexion § Inversion § Eversion § Supination §

Special Movements § Dorsiflexion § Plantar flexion § Inversion § Eversion § Supination § Pronation § Opposition Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Types of Muscles § Prime mover – muscle with the major responsibility for a

Types of Muscles § Prime mover – muscle with the major responsibility for a certain movement § Antagonist – muscle that opposes or reverses a prime mover § Synergist – muscle that aids a prime mover in a movement and helps prevent rotation § Fixator – stabilizes the origin of a prime mover Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Naming of Skeletal Muscles § Direction of muscle fibers § Example: rectus (straight) §

Naming of Skeletal Muscles § Direction of muscle fibers § Example: rectus (straight) § Relative size of the muscle § Example: maximus (largest) Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Naming of Skeletal Muscles § Location of the muscle § Example: many muscles are

Naming of Skeletal Muscles § Location of the muscle § Example: many muscles are named for bones (e. g. , temporalis) § Number of origins § Example: triceps (three heads) Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Naming of Skeletal Muscles § Location of the muscle’s origin and insertion § Example:

Naming of Skeletal Muscles § Location of the muscle’s origin and insertion § Example: sterno (on the sternum) § Shape of the muscle § Example: deltoid (triangular) § Action of the muscle § Example: flexor and extensor (flexes or extends a bone) Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Head and Neck Muscles Figure 6. 15 Copyright © 2006 Pearson Education, Inc. ,

Head and Neck Muscles Figure 6. 15 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Trunk Muscles Figure 6. 16 Copyright © 2006 Pearson Education, Inc. , publishing as

Trunk Muscles Figure 6. 16 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Deep Trunk and Arm Muscles Figure 6. 17 Copyright © 2006 Pearson Education, Inc.

Deep Trunk and Arm Muscles Figure 6. 17 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Muscles of the Pelvis, Hip, and Thigh Figure 6. 19 c Copyright © 2006

Muscles of the Pelvis, Hip, and Thigh Figure 6. 19 c Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Muscles of the Lower Leg Figure 6. 20 Copyright © 2006 Pearson Education, Inc.

Muscles of the Lower Leg Figure 6. 20 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Superficial Muscles: Anterior Figure 6. 21 Copyright © 2006 Pearson Education, Inc. , publishing

Superficial Muscles: Anterior Figure 6. 21 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings

Superficial Muscles: Posterior Figure 6. 22 Copyright © 2006 Pearson Education, Inc. , publishing

Superficial Muscles: Posterior Figure 6. 22 Copyright © 2006 Pearson Education, Inc. , publishing as Benjamin Cummings