Download - Bio & 241 A&P 1 Unit 3 / Lab 4
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Bio & 241 A&P 1 Unit 3 / Lab 4
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Histology Slides for Muscle Tissues
• Slides are presented in order of magnification if different view are presented.
• As you view the following slides, make sure you can accomplish these goals:
1. Can you identify the tissue observable on the slides?
2. Can you identify the specific structures or layers indicated by the numbered arrows or brackets?
• At the end of a sequence, you will find the answers to the above for each slide.
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Type of Muscle Tissue?
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Type of Muscle Tissue?
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Type of Muscle Tissue?
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Type of Muscle Tissue?
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Type of Muscle Tissue?
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Answers to Slides 2 through 7Slide 2: Skeletal Muscle showing both longitudinal and transverse viewsSlide 3: Skeletal Muscle in longitudinal viewSlide 4: Cardiac Muscle in longitudinal viewSlide 5: Individual smooth muscle cellSlide 6: Transverse section of the GI tract showing muscle layersSlide 7: High power view of transverse section of the GI tract showing
muscle layersNumbered arrows:1. Peripheral nuclei of skeletal muscle cells. Note multiple nuclei
associated with each cell2. A and I bands of a skeletal muscle fiber3. Blood vessel in the perimysium4. Perimysium between muscle fascicles5. Intercalated discs6. Branching fibers
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Answers to Slides 2 through 77. Centrally located nucleus8. Isolated single smooth muscle cells with nucleus9. Longitudinal smooth muscle layer of GI tract wall10. Circular smooth muscle layer of the GI tract wall11. Spindle-shaped smooth muscle cells
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Answers to Slides 10 through 13
Slide 10: Muscle-Tendon intersection low powerSlide 11: Muscle-Tendon intersection high powerSlide 12: Neuromuscular junction low powerSlide 13: Neuromuscular junction high powerNumbered arrows:12. Skeletal Muscle13. Skeletal muscle cell14. Epimysium surrounding muscle15. Endomysium joining the tendon16. Tendon17. Portion of a Motor unit of a muscle18. Motor nerve19. Axon from a motor nerve20. Neuromuscular junction with Ach vesicles
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Answers to slides 15 through 13
Slide 15-16: Nerve artery vein slide with Masson stain for connective tissue
Numbered Arrows:1. Transverse section through a nerve2. Vein3. Transverse section through a muscle fascicle4. Epimysium covering the muscle5. Perimysium surrounding a muscle fascicle6. Adipose Tissue7. Endomysium surrounding muscle fibers