Bio 135 Test Review Essay

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BIO 135 Test 3 (6,7,8,16) Review Sheet

2. What do all types of cartilage have in common? 3. Name the spaces that Chondrocytes are within 4. Name the 3 types of cartilage

Where in the body is each type found?

5. Which cartilage has many elastin fibers?
6. What is a cartilage cell called?
7. How does fibrocartilage differ from other cartilage? 8. How does cartilage grow?

9. What gives bone flexibility?
10. What gives bone strength?
11. Name the 3 bone cells and their function 12. What is bone’s Extracellular matrix made up of?
13. What is calcification?
14. What is ossification?

15. What is osteogenesis?
16. What is osteolysis?
17. What is the functional unit of Compact bone? 1. Structural
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Osteoblasts and osteoclasts are sensitive to pressure. Increase pressure, osteoblasts increases bone. No pressure, osteoclast decreases bone
36. What does exercise do to bone?
Exercise increases bone density.
37. What happens if you don’t have enough The body’s calcium needs will come out of the calcium in the blood? bone by an increase in osteoclast activity. The

BIO 135 Test 3 (6,7,8,16) Review Sheet

38. What is osteoporosis?
39. What causes OSTEOPOROSIS?
40. What’s the best way to prevent osteoporosis? 41. What is the most common bone used for a bone graft?
42. What are the stages of healing after a

43. Which type of cell divides readily after a bone is damaged?
44. What is the function of an osteoprogenitor cell?
45. What is a lateral curve in the spine?
46. What is a hunchback curve?
47. What is a swayback in the lower region? 48. What is severe arthritis in the spine, causing the vertebrae to fuse?

osteoclasts will dissolve some bone material and release it into the blood.
Osteoporosis is a condition where there is less mineralization in the extracellular matrix.
Caused by increased activity of osteoclasts
(more so than osteoblasts).The spongy bone is affected more than compact bone.
 Prevent it by exercise! the iliac bone of the hip.
Bleeding, then hematoma (blood clot)
Then a fibrocartilage callus forms
Then a bony callus forms.
Osteoclasts then finish remodeling the bone. osteoprogenitor cell
Produce new osteoblasts

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