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L7 Cellular Activity of Bone Tissue

Mer Scott 14 preguntas 5,0 (1 valoración)

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Preguntas del test (14)

  1. 1It takes about 6 weeks for the fibrocartilage in a fetus to begin developing into bones(ossification.)
    1. AVerdadero
    2. BFalso
  2. 2The [blank_start]diaphysis[blank_end] of long bones is the [blank_start]primary[blank_end] centre of ossification. The [blank_start]secondary centres[blank_end] occur in the [blank_start]epiphysis[blank_end]. These are separated by the epiphyseal plate, which is initially cartilaginous but becomes bone later in life.
    1. Adiaphysis
    2. Bprimary
    3. Csecondary centres
    4. Depiphysis
  3. 3The process of bone growing in width is called moulding.
    1. AVerdadero
    2. BFalso
  4. 4During moulding:
    (Choose ALL CORRECT statements.)
    1. AOsteoblasts in the periosteum increase bone width.
    2. BOsteoclasts form the medullary cavity.
    3. COsteoblasts in the medullary cavity form the trabeculae.
    4. DOsteoclasts increase the width of the periosteum.
  5. 5In children, the medullary cavity is full of yellow marrow to facilitate the continuous growth, while in adults the medullary cavity is filled with red marrow.
    1. AVerdadero
    2. BFalso
  6. 6Red marrow is red as it is highly vascularised.
    1. AVerdadero
    2. BFalso
  7. 7What is epiphyseal fusion?
    1. AThe calcification of the region between an epiphysis and edge of the medullary cavity.
    2. BThe ossification of the epiphyseal joint.
    3. CThe ossification of the epiphyseal plate.
    4. DThe merging of two regions of bone between the epiphysis and diaphysis.
  8. 8Bone pathology:
    1. AIs an imbalance of osteoclastic and osteoblastic activity.
    2. BIs the structure of bones at the cellular level.
  9. 9Osteoporosis is the weakening of the bone due to porousness, caused by osteoblastic activity overtaking osteoclastic activity.
    1. AVerdadero
    2. BFalso
  10. 10Weakening of cancellous bone commonly leads to compression fractures.
    1. AVerdadero
    2. BFalso

Información

Descripción
Objectives: • Describe the general principles of bone growth. • Describe the process of bone remodelling and explain how this relates to osteoporosis. • Describe the healing of bone fractures.
Idioma
English
Visitas
40
Valoración
5,0 de 5 · 1 valoración
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