Examining the Microscopic Structure of Bone Answer the following questions regarding the microscopic structure of bone. Refer to figure 6.7 in the textbook as needed. I also recommend that you watch my video on the microscopic structure of the bone model. 1. The functional unit of bone is the miniature weight-bearing pillars. which can be viewed as 2. What are the three structures found in the central canal? 3. A layer of bone matrix in which the collagen fibers align and run in a single direction is called a 4. The mature bone cells trapped in lacunae are called Cartilage of the Skeleton Answer the following questions regarding cartilage of the skeleton. Refer to figure 6.2 and chapter 4 in the textbook as needed. 1. Where can hyaline cartilage be found? 2. Where can elastic cartilage be found? 3. Where can fibrocartilage be found? 4. Which of the three different types of cartilage is the most flexible? 5. Which of the three different types of cartilage is best suited to absorb compressive shock? Chemical Composition of Bone After watching the video examining the effects of heat and acid on bones answer the following questions. 1. What does the acid appear to remove from the bone? 2. What does heating (baking) appear to do to the bone? 3. What is the function of the organic matrix of bone? 4. What is the function of the calcium salts in bone? 5. In rickets, the bones are not properly calcified. Which of the demonstration specimens would more closely resemble the bones of a child with rickets? Hint: Watch the video called Examining the Effects of Heat and Acid on Bones.