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5 Written questions

5 Matching questions

  1. proliferation zone
  2. periosteum
  3. sesamoid bones (short bones)
  4. fact: without its mineral content, bone bends too easily to support weight
  5. osteogenic cells
  1. a special type of short bone that forms within a tendon
    - ex: kneecap/patella
    - vary in size and number
    - some clearly act to alter the direction of pull of a tendon
    - others reduce friction and modify pressure in tendons, thus reducing abrasion or tearing
  2. b 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. c the proper combination of organic and inorganic elements allows bones to be exceedingly durable, strong, and resilient without being brittle
  4. d stem cells that differentiate into bone-forming osteoblasts
  5. e connective tissue membrane that covers the entire outer surface of each bone except on the ends of the epiphyses, where articular cartilage occurs
    - provides insertion points for the tendons and ligaments that attach to a bone

5 Multiple choice questions

  1. main vessels serving the diaphysis
    - together run through a hole in the wall of the diaphysis, the nutrient foramen
  2. form of bone cancer
    - usually originates in a long bone of the upper or lower limb
  3. also called growth plates
    - responsible for lengthening the bones during the two decades following birth
  4. every 3 or 4 years
  5. the older condrocytes deeper in the stack that enlarge and signal the surrounding matrix to calcify

5 True/False questions

  1. membrane bonesdevelop from a mesenchymal membrane through a process called intramembranous ossification


  2. 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


  3. fact: periosteum is richly supplied with nerves and blood vesselsosteoclasts


  4. osteogenesiscells that actively produce and secrete the organic components of the bone matrix: the ground substance and the collagen fibers
    - bone matrix secreted by osteoblasts is called OSTEOID


  5. classification of boneslong bones
    short bones
    flat bones
    irregular bones


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