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5 Written questions

5 Matching questions

  1. callus
  2. central canals contain
  3. ossification
  4. osteoporosis
  5. osteogenesis
  1. a specialized repair tissue that binds the broken ends of the fracture together.
  2. b bone formation
  3. c combined action of osteoblasts & osteoclasts to mold bones into adult shape
  4. d no calcium. deterioration of vertebral support.

    1. Bones lose mass and become increasingly brittle and subject to fractures
    2. More prevalent in women - postmenopausal
    3. Men develop later in life - senile

    genetics, diet & exercise
  5. e blood vessels, lymphatic vessels & nerves

5 Multiple choice questions

  1. 1. Most bones develop this process
    2. Formation of primary ossification center and marrow cavity in shaft of model
    a. Bony collar developed by osteoblasts
    b. Chondrocytes swell and die
    c. Stem cells give rise to osteoblasts and clasts
    d. Bone laid down and marrow cavity created

    epiphysis - needs to be remodeled (reshaped)
    bone grows on the outside and then an inner layer disappears by osteoclasts. this is so the bones don't get too heavy
  2. bone marrow
  3. bone tissue can repair itself due to blood supply

    1. AKA Haversian systems
    2. Permit delivery of nutrients and removal of waste products
    3. Components
    a. Lamella - layers, rings, aka matrix
    b. Lacunae - dimples (osteon sits in lacunae)
    c. Canaliculi - like like little cracks, actually canals
    d. Central or Haversian canal - blood vessels, lymphatic vessels
    e. Volkmann's or Perforating canals - mainly blood vessels. connects central canals (ex. if one central canal gets clogged then get from here)
  4. inside
  5. to make RBCs
    1. Support (ex. to stand up)
    2. Protection (ex. cover vital organs)
    3. Movement - muscles covers - movement
    4. Mineral storage - calcium, 98% of calcium is stored in bone. (too much calc. in blood, then store in bones - like a bank, can add to bank until 30-35)
    5. Hematopoiesis (blood formation) - formation of blood cells, RBC, WBC, Platelets

    can't live w/o calc.

5 True/False questions

  1. endochondral ossification 2/21. Secondary ossification centers and marrow cavities form in ends of bone
    2. Cartilage remains as articular cartilage and epiphyseal (growth) plates
    a. Growth plates provide for increase in length of bone during childhood and adolescence
    b. Disappear when growth stops

          

  2. central or Haversian canalblood vessels, lymphatic vessels & nerves

          

  3. osteoblastbone absorbing cell

    breaks down the matrix

          

  4. Volkmann's or perforating canalsmainly blood vessels. connect central canals (ex. if one central canal gets clogged then get from here)

          

  5. hemopoiesisno calcium. deterioration of vertebral support.

    1. Bones lose mass and become increasingly brittle and subject to fractures
    2. More prevalent in women - postmenopausal
    3. Men develop later in life - senile

    genetics, diet & exercise