The Skeletal System Pre-Lab Questions List the functions of the skeletal system. What material contributes the most to the compressive strength of bone? Briefly describe the process of bone remodeling. Research Wolff’s Law. How does the formation of torus mandibularis relate to this theory? Given your understanding of Wolff’s Law, what mechanical consideration would be important when designing a bioreactor for osteocyte growth ex vivo? Experiment 1: Classification of Bones Data Tables Table 6: Classification of Numbered Bones Bone Name Classification by Shape Classification by Location Post-Lab Questions 1. Why is it important to classify bones? Aside from length, what are some other common characteristics of a long bone? Are long bones typically associated with the axial or appendicular skeleton? Compare and contrast flat bones and long bones. Experiment 2: Digital Slide Image Examination - Bone Post-Lab Questions 1. Identify the indicated components in the slide image. A_________________ B_________________ C_________________ D_________________ Identify the indicated components in the slide image. A_________________ B_________________ Compare and contrast the structures of cortical bone and trabecular bone. What is the purpose of cortical bone and trabecular bone? What are trabeculae? What is their function? What are Haversian systems? What is their function? Experiment 3: Owl Pellet Dissection Data Tables Table 7: Owl Pellet Observations Pellet Characteristics Observations Pellet Length (cm) Pellet Width (cm) Physical Observations Table 8: Animal Bone Observations Bone Animal Source Number of Bones Skull Jaw Scapula Rib Vertebrae Hindlimb Forelimb Pelvic bone Post-Lab Questions 1. What types of bones did you recover from the pellet? Compare the bones you dissected in the owl pellet to human bones. Which bones are similar, which are different, and why? How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem? In addition to owls, other birds of prey produce pellets. The contents of these pellets are dictated by where the bird lives. What would you expect to find in a pellet from a shorebird, such as a gull? Experiment 4: Effects of Acid on Bone Data Tables Table 9: Effect on Pellet Bones Beaker Observations Water Vinegar Post-Lab Questions 1. Which group of bones is more flexible? Why is this so? What was damaged in the bones placed in vinegar? How might the experiment results vary if the same procedure was performed using bones that had not been regurgitated in an owl pellet (such as raw chicken bones)? Some people suffer from a disease called rickets, in which their bones have not been adequately calcified. Which group of bones is most similar to that of a patient with rickets? Why? Experiment 5: Physical Skeleton – The Axial Skeleton Data Tables Table 15: Cervical Vertebrae Observations Vertebral Feature Ob.