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5 Written questions

5 Matching questions

  1. fourth type of cell found within bone tissue
  2. fact: without its mineral content, bone bends too easily to support weight
  3. flat bones
  4. structure of a long bone
  5. after the secondary ossification centers have appeared and epiphyses have largely ossified, hyaline cartilage remains at only two places
  1. a thin, flattened, and usually somewhat curved
    - most cranial bones of the skull, ribs, sternum, scapula
  2. b osteoclasts
  3. c (1) on the epiphyseal surfaces, where it forms the articular cartilages
    (2) between the diaphysis and epiphysis, where it forms the epiphyseal plates
  4. d diaphysis
    epiphyses
    blood vessels
    medullary cavity
    membranes
  5. e the proper combination of organic and inorganic elements allows bones to be exceedingly durable, strong, and resilient without being brittle

5 Multiple choice questions

  1. all bones from the base of the skull down, except for the clavicles, are endochondral bones
    - begins late in the second month of development and is not completed until the skeleton stops growing in early adulthood
    - growing endochondral bones increase both in length and in width
  2. chondroblasts at the "top" of the stack that divide quickly, pushing the epiphysis away from the diaphysis, thereby causing the entire long bone to lengthen
  3. bone ends
    - joint surface is covered with a thin layer of hyaline cartilage (articular cartilage)
  4. (1) hematoma formation
    (2) fibrocartilaginous callus formation
    (3) bony callus formation
    (4) bone remodeling
  5. - projections that are the attachment sites for muscles and ligaments
    - surfaces that form joints
    - depressions and openings

5 True/False questions

  1. circumferential lamellaeoccur in the external and internal surfaces of the layer of compact bone
    - extends around the entire circumference of the diaphysis
    - resist twisting of the entire long bone

          

  2. epiphyseal platesbetween the dipahysis and each epiphysis of an adult long bone
    - line is a remnant of the epiphyseal plate, a disc of hyaline cartilage that grows during childhood to lengthen the bone

          

  3. long boneswhen osteoblasts are completely surrounded by bone matrix and are no longer producing new osteoid
    - function to keep the bone matrix healthy
    - if osteocytes die or are destroyed, the bone matrix is resorbed

          

  4. osteogenesis, before week 8begins in the embryo, proceeds through childhood and adolescence as the skeleton grows, and then occurs at a slower rate in the adult as part of a continual remodeling of the full-grown skeleton

          

  5. open reductionbone ends are joined surgically with pins or wires; after the broken bone is reduced, it is immobilized by a cast or traction to allow the healing process to begin

          

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