Osseous Tissue and Skeletal Structure Take-Home Test



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Name: ________________________________________________________ Date: _________________

Osseous Tissue and Skeletal Structure Take-Home Test
1. Functions of the skeletal system include all of the following, except:

a. support b. storage c. protection d. blood cell production e. movement


2. Mature bone cells are termed:

a. osteocytes b. osteoblasts c. osteoclasts d. chondrocytes e. osteons


3. Cells that synthesize the organic components of the bone matrix are termed:

a. osteocytes b. osteoprogenitor cells c. osteoblasts d. osteoclasts e. chondrocytes


4. Large, multinucleated cells that can dissolve the bony matrix are termed:

a. osteocytes b. osteoprogenitor cells c. osteoblasts d. osteoclasts e. chondrocytes


5. In the process of osteolysis (hint, look at the word parts like we do in class):

a. new bone is formed

b. an organic framework is formed

c. the bony matrix is dissolved to release the stored minerals

d. osteoblasts for the osteoid that is later calcified

e. fractured bones repair themselves


6. The narrow passageways between lacunae are called:

a. lamellae b. tunnels c. canaliculi d. medullary cavities e. matrices


7. The basic functional unit of compact bone is called the Haversian system or:

a. osteocyte b. osteoclast c. osteon d. osseous matrix e. osseous lamellae


8. The central canal of an osteon contains:

a. bone marrow b. osteocytes c. centric lamellae d. blood vessels e. lacunae


9. The tiny plates of bone material found in spongy bone are called:

a. osteons b. trabeculae c. concentric lamellae d. interstitial lamellae e. lacunae


10. The medullary cavity of bones contains:

a. compact bone b. osteons c. cartilage d. marrow e. periosteum


11. The shaft of the long bone is called the:

a. epiphysis b. diaphysis c. epiphyseal plate d. metaphysic e. diploë


12. Growth of the bone continues from the:

a. epiphysis b. diaphysis c. epiphyseal plate d. metaphysic e. diploë


13. The “head” of a long bone is called the:

a. epiphysis b. diaphysis c. epiphyseal plate d. metaphysic e. diploë

14. The spongy bone between compact plates on flat bones is called:

a. epiphysis b. diaphysis c. epiphyseal plate d. metaphysic e. diploë


15. The epiphyseal plates are in the general area of the:

a. epiphysis b. diaphysis c. epiphyseal plate d. metaphysic e. diploë


16. The lining of the medullary cavity is called the:

a. endosteum b. periosteum c. epimysium d. perimysium e. perichondrium


17. Ossification refers to:

a. the formation of new bone tissue

b. deposition of calcium salts within a tissue

c. deposition of calcium salts within a bone

d. release of calcium from bone

e. repair of fractured bones


18. Endochondral ossification BEGINS with the formation of:

a. a fibrous connective tissue model

b. a cartilage model

c. a membranous model

d. a calcified model

e. no model at all


19. The most abundant MINERAL in the body is:

a. sodium b. potassium c. phosphorus d. calcium e. sulfur


20. The non pathologic (not caused by disease) loss of bone that occurs with aging is called:

a. osteopenia b. osteoporosis c. osteomyelitis d. ostetitis e. osteomalacia


21. The femur is an example of a ____ bone.

a. long b. short c. flat d. irregular e. sesamoid


22. The sternum is an example of a ____ bone.

a. long b. short c. flat d. irregular e. sesamoid


23. A vertebra is an example of a ____ bone.

a. long b. short c. flat d. irregular e. sesamoid


24. The patella is an example of a ____ bone.

a. long b. short c. flat d. irregular e. sesamoid


25. The talus (an ankle bone) is an example of a ____ bone.

a. long b. short c. flat d. irregular e. sesamoid

26. Bones that develop within tendons are called ___ bones.

a. irregular b. sesamoid c. sutural d. wormian e. tendon


27. Small, flat, oddly shaped bones found between some of the large flat bones of the skull are called ___ bones.

a. irregular b. sesamoid c. sutural d. sagittal e. tendon


28. A canal (hole) leading through the substance of a bone is termed a:

a. sinus b. fossa c. fissure d. foramen e. sulcus


29. The lacunae of bone contain:

a. blood cells b. osteocytes c. chondroblasts d. bone marrow e. osteons


30. If the rate of osteolysis exceeds the rate of osteogenesis, the bone will:

a. grow b. become thicker c. become demineralized d. become stronger e. become calcified




Short Answer (31-40)

Please answer these on the back of your ScanTron sheet
31. In the blood, calcium phosphate forms crystals called ___.
32. The ___ supply blood to the diaphysis of the bone.
33. During the process of ___, existing material is replaced by bone.
34. The bone is surrounded by a membrane called the ___.
35. ___ prevents damaging bone-to-bone contact within movable joints.
36. ___ is responsible for the production of erythrocytes (red blood cells).
37. The vessels that supply the epiphyseal plates with blood are called:
38. Fractured bone will usually repair if the ___ has not been disrupted.
39. Young adults usually have all skeletal material replaced every ___ years.
40. ___ is a bone disease (usually in old age) that allows demineralization of the bone, but does not allow replacement of the bone material.\


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