anatomy questions - Use the online textbook and the Chapter Outline on Schoology to familiarize yourself with the terminology of the Skeletal System As

anatomy questions - Use the online textbook and the Chapter...

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Use the online textbook and the Chapter Outline on Schoology to familiarize yourself with the terminology of the Skeletal System. As you read the Chapter, you can take notes (or print from the outline as needed). Use the recommended reading schedule to read and answer the practice questions (1-40). Submit your answers through Schoology. These will only be counted as a homework completion grade. As always, your work should represent your own ideas but you may discuss with classmates as needed. Recommended Reading Schedule: 10/9 Wed Pg 81 Q 1-4 1. Bones are classified according to the shape: long, short, flat, irregular, sesamoid and sutural. 2. Diaphysis , epiphysis , articular cartilage, medullary cavity, and periosteum 3. Osteocytes , and layers of extracellular matrix, that are clustered around the central canal. 4. Compact is tightly packed , it has extracellular matrix,Sponges has holes in them , the holes are there to take away the weight 5. Intramembranous bones develop from layers of connective tissue. Osteoblasts within the membranous layers form bone tissue. Mature bone cells are called osteocytes. 6. Endochondral bones develop of masses of hyaline cartilage with shapes similar to the future bone structures. These models grow rapidly for a while, and then begin to undergo extensive changes. 7. Resting Zone Layer closest to epiphysis; where cartilage remains Proliferating Zone Chondrocytes producing new cartilage cells Degenerating Zone Cartilage cells are dying of Ossification Zone Zone where bone is forming 8. lack of Vit D - softens and deforms bones 9. growth/sex hormones - seal epiphyseal plates 10. physical exercise - thickens and strengthens bones 11. Support, Protect, and help with Movement. 12. red marrow is hemopoietic (produces red and white blood cells and platelets); yellow marrow stores energy (fat) 13. Blood calcium levels are regulated by parathyroid hormone (PTH), which is produced by the parathyroid glands. ... In the skeleton, PTH stimulates osteoclasts, causing bone to be broken down and releasing Ca 2+ from bone into the blood. PTH also inhibits osteoblasts, reducing Ca 2+ deposition in bone.
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