The skeleton is an integral part of the body. It works with other major body systems to help the body function and stay healthy. The bones are also shaped by their relationships with other body systems. How does the skeleton specifically work with and relate to the muscular system? How does the skeleton specifically work with and relate to the circulatory system? (Be sure to consider things like bone remodeling and bone features, as well as general bone function.) 2. Under what circumstances would an adult have woven for unorganized) bone? 3. This question may be completed independently or as a group discussion Review your work in Exercise 1 above. Describe an additional hypothetical situation of the "use it" portion of the "use it or lose it" principle. Be sure to describe the situation/behavior and explain why more bone is present under these circumstances. Also, describe an additional hypothetical situation of the "lose it" portion of the use it or lose it principle. Be sure to describe the situation and behavior and explain why less bone is present under these circumstances. 4. This question may be completed independently or as a group discussion. Use the skeleton diagram from Exercise 2 (p. 117) to help you visualize the different bone shapes in the human body. Why are short bones well suited to an area like the wrist? Why are long bones more suited to areas like the lower arm? 5. Why is a bone like the scapula for shoulder blade) considered part of the appendicular skeleton and not the axial skeleton? 6. This question may be completed independently or as a group activity Use directional terminology to describe the relationship between the following pairs of bones in the human skeleton. Use the skeleton diagram provided in the lab Appendix for Exercise 5 to help you Cranium-pelvis Tibia-fibula Sternum-thoracic vertebrae Radius-humerus 7. This question may be completed independently or as a group discussion Consider the mandibular canal pictured here. It is located inside the mandible flower jawbonel, extending posteriorly from the mental foramen. Based on what you know of bone features, what do you think this canal is for? Why would we need a hollow space in this area of this bone? Femur-tarsals Pinky toe phalanges-big toe phalanges Occipital-frontal Lumbar vertebrae-cervical vertebrae Mental foramen WID Mandibular canal