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Anatomy & Physiology SIXTH EDITION Chapter 11, part 4 The Muscular System PowerPoint® Lecture Slide Presentation prepared by Dr. Kathleen A. Ireland, Biology Instructor, Seabury Hall, Maui, Hawaii Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Frederic H. Martini Fundamentals of Muscles that affect the elbow • Biceps brachii muscle • Triceps brachii muscle • Brachialis and brachioradialis flex the elbow • Aconeus muscle extends the elbow Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Muscles that affect the wrist • Flexion of the wrist • Flexor carpi ulnaris • Flexor carpi radialis • Palmaris longus • Extension of the wrist • Extensor carpi radialis • Extensor carpi ulnaris Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.16 Muscles that Move the Forearm and Hand Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.16a Figure 11.16 Muscles that Move the Forearm and Hand Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.16b Muscles that affect the forearm • Pronation of the forearm • Pronator teres muscle • Pronator quadratus muscle • Supination of the forearm • Supinator muscle PLAY Animation: Muscles of the shoulders and upper limbs Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.17 Muscles that Move the Hand and Fingers Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.17a, b Figure 11.17 Muscles that Move the Hand and Fingers Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.17c, d Figure 11.18 Intrinsic that Move the Hand and Fingers Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.18a Figure 11.18 Intrinsic that Move the Hand and Fingers Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.18b Muscles of the pelvis and lower limbs • Gluteal muscles cover the lateral surfaces of the ilia • Gluteus maximus (shares an insertion with the tensor fasciae latea) • Pulls on the iliotibial tract Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.19 Muscles that Move the Thigh Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.19a, c Figure 11.19 Muscles that Move the Thigh Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.19c, d Lateral rotators of the leg • Piriformis muscle • Obturator muscles Adductors perform a variety of functions Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Iliopsoas muscle • Formed from the merging of the psoas major and the iliacus muscles • Powerful flexor of the hip Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.20 Muscles that Move the Leg Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.20a Figure 11.20 Muscles that Move the Leg Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 11.20b, c
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