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lab 7 - Identify the muscle fibers endomysium and...

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Lab Report Name: ____________________ Section: ___________________ Lab Report: Organization of Muscle Tissue Purpose: What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. Activity 1: Examining Skeletal Muscle Cells Observations: Sketch the observed chicken skeletal muscle tissue and the muscle tissue from the prepared slide and label the sarcolemma and nuclei. QUESTIONS: A. What muscular structures created the striped or banded image you saw in your chicken’s tissue? B. How are muscle cells different from a “typical” cell in your own body? C. What is the sarcolemma? Activity 2: Organization of Skeletal Muscle Cells into Muscles Observations: Sketch the skeletal muscle cross section.
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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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lab 7 - Identify the muscle fibers endomysium and...

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