Muscular & Skeletal Systems
Figure 30.8_1 Muscle Several muscle fibers Single muscle fiber (cell)
Figure 30.8_2 Plasma membrane Nuclei Myofibril Light band Dark band Light band Z line Sarcomere Single muscle fiber (cell)
Figure 30.8_3 Sarcomere Z line Thick filaments (myosin) Thin filaments (actin) Light band Dark band Light band Z line Sarcomere
Figure 30.9A Relaxed muscle Contracting muscle Fully contracted muscle Dark band Sarcomere Contracted sarcomere ZZ
Contraction of I and A bands
Figure 30.10B Myosin-binding sites blocked Myosin-binding sites exposed Myosin-binding site Ca 2 floods the cytoplasmic fluid Actin Tropomyosin Ca 2 -binding sites Troponin complex
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Figure 30.10A Motor neuron axon Synaptic terminal T tubule Action potential Mitochondrion Endoplasmic reticulum (ER) Myofibril Plasma membrane Sarcomere Ca 2 released from ER
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings © 2012 Pearson Education, Inc.
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Figure 30.4 Cartilage Spongy bone (contains red bone marrow) Compact bone Central cavity Yellow bone marrow Fibrous connective tissue Blood vessels Cartilage
Figure 30.5B