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Unformatted text preview: Identify the muscle fibers, endomysium and perimysium. QUESTIONS: A. Why do muscle fibers need to be wrapped and bundled into groups? B. What tissue are the muscle wrappings generally made out of? Why? C. What is a fascicle? D. Compare and contrast tendons and aponeuroses. 1 Activity 3: The Neuromuscular Junction Observations: Sketch your observations and label the axon, the terminal braches, and the muscle fibers. QUESTIONS: A. How does a motor neuron stimulate a muscle fiber? B. What happens at the synaptic cleft? C. What is a motor unit? D. Why is skeletal muscle called “voluntary” muscle? Conclusions: Why is it important to understand the relationship between nerves and muscles? 2...
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- Spring '08
- skeletal muscle cells, Organization of Muscle Tissue