Learning Targets
o 10-2 Students can describe the organization of muscle at the tissue level.
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o 10-3 Students can explain the characteristics of skeletal muscles fibers, and identify the structural components of a sarcomere.
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Vocabulary
10-2
§ Epimysium § Perimysium § Fascicle § Endomysium § Myostatellite cells § Tendon § Aponeurosis |
10-3
§ Myoblasts § Sarcolemma § Sarcoplasm § Transverse tubules § Myofibrils § Myofilaments § Thin filaments § Thick filaments § Sarcoplasmic reticulum § Terminal cisternae § Triad § A bands § I bands § M line § H band § Zone of overlap § Z lines § Titin § Filamentous actin § G-actin § Nebulin § Active site § Tropomyosin § Troponin § Cross-bridges § Sliding filament theory |
Checkpoints
10-2
§ Using figure 10-1, sketch a picture showing the organization of skeletal muscles. + Label and briefly describe the 3 connective tissues. + Label a tendon, and the location of blood vessels and nerves. + How would severing the tendon attached to a muscle affect the muscle’s ability to move a body part? |
10-3
§ Using figure 10-3, draw and label the structure of a skeletal muscle fiber. + Where would you expect the greatest concentration of Ca2+ in resting skeletal muscle to be? § Using figure 10-4a, draw and label the sarcomere structure. + Why do skeletal muscle fibers appear striated when viewed through a light microscope? § Using terms and figure 10-6, outline the levels of functional organization in a skeletal muscle. § Using figure 10-8, sketch a picture to describe what happens when a skeletal muscle fiber contracts? (sliding filament theory) |
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