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5 Written questions

5 Matching questions

  1. Development of bone (3)
  2. osteoblasts & osteoclast & calcium
  3. bone tissue
  4. hemopoiesis
  5. callus
  1. a the formation of blood cells
  2. b 1. during bone formation osteoblasts remove calcium from blood, lowering its circulating levels
    2. when osteoclasts are active and breakdown of bone predominates, calcium is released into blood & circulating levels will increase.
  3. c connective tissue
    1. Matrix dominates (calcium, calcium phosphate, sodium...)
    2. Inorganic salt - hydroxyapatite
    calcium phosphate (gives bones hardness)
    3. Organic matrix - protein fibers = gives you flexibility

    Note 1: need both organic and inorganic btw cells.
    Note 2: if calcium phosphate is the only thing in the bones then brittle bones and they shattered.
    Note 3: is only organic then osteoporosis
  4. d specialized repair tissue that binds the broken ends of the fracture together.
  5. e 1. Osteogenesis
    2. Intramembranous ossification - replaces membrane
    a. Occurs within a connective tissue membrane
    b. Apposition growth
    i. Adds bone tissue to outer surface (inside to outside) "suture" is where the bones grew together w/bone cells.
    3. Endochondral ossification - replace cartilage
    a. Occurs within a cartilage model
    b. Bone is deposited by osteoblasts
    c. Appositional and Interstitial growth
    i. Increases in diameter and length

5 Multiple choice questions

  1. bone formation
  2. growth in diameter
  3. cylinder shaped structural unit in compact bone
  4. around
  5. combined action of osteoblasts & osteoclasts to mold bones into adult shape

5 True/False questions

  1. myelobone marrow

          

  2. repair of fractures 2/21. Fracture tears and destroys blood vessels that carry nutrients to osteocytes
    2. Vascular damage initiates repair sequence
    3. Callus - specialized repair tissue that binds the broken ends of the fracture together
    4. Rapidly growing callus tissue effectively collars broken ends and stabilizes fracture so healing can proceed.

          

  3. Functions of bone (5)1. Cancellous (Spongy) Bone - inside bone
    2. Compact Bone - outside
    3. Long Bones - femur, tibia & humerous
    4. Short Bones - carpals, tarsals
    5. Flat Bones - skull, sternum
    6. Irregular Bones - pelvis

          

  4. 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

          

  5. parts of long bone (7)1. Diaphysis - shaft
    2. Epiphysis - bulby ends, where muscles attach
    3. Epiphyseal plate or disk - cartilage, plate=still growing, line=stopped growing (white line)
    4. Medullary or marrow cavity - hollow, living bone has marrow
    5. Periosteum - around the bone
    6. Endosteum - lines the cavity, inside
    7. Articular cartilage - covers head & bottom