Long Bone Bellringer – ANSWER KEY
PSE-4UI
Mrs. Campbell/Ms. Spreitzer
**Out of 20 marks**
1) Label the diagram
1) Epiphysis
2) Name three types of long bones
1) Femurs, tibias, fibulas, humeri, radii, ulnas and the phalanges of the
fingers and toes.
3) What type of cartilage covers the epiphyses?
1) Hyaline or articular cartilage
4) Which of the following do not have blood supply?
1) Medullary Cavity
2) Comapct Bone
3) Peiosteum
4) Articular Cartilage
5) All of the above
5) Label the diagram
1) Cancellous bone
6) Which of the following is a definition of an ephiphyseal line:
1) Growth plates, occur at various locations
2) When two bones have come together
3) Ridge on the bone
4) Growth plates fuse together
7) What parts of the long bone can you strengthen with exercise? Cancellous
bone/Compact bone
8) Are the arrows pointing at an epiphyseal plate or line?
1) Epiphyseal Plate
9) Bone and Cartilage are two types of connective tissue in long bones? True or
false?
1) True
10) What are the three types of bone cells?
1) Osteocytes, osteoblasts and osteoclasts
11) What type of bone starts as cartilage for bone formation?
1) Compact
2) Peiosteum
3) Cancellous
4) Medullary Cavity
12) Label the diagram:
1) Periosteum
13) Put the stages of ossification in order:
1) Development of cartilage
2) Growth of cartilage
3) Development of the primary ossification
4) Development of medullary cavity
5) Development of the secondary ossification
6) Formation of articular cartilage and epiphyseal plates
14) When does the skeleton reach maturity?
1) 16-20
2) 16-18
3) 20-24
4) 18-25
15) Which of the following statements is false:
1) Primary ossification occurs during fetal development
2) Secondary ossification occurs during your late 40’s
3) Secondary ossification occurs after birth until the epiphyseal plates have
fused
4) All of the above are true
16) In cancellous bone formation the _________ release osteiod into membrane
which forms a sponge-like bundle of fibres.
C) Osteoblast
17) What order are the following bone cells released in bone remodelling?
A) Osteoclasts  Osteoblasts
18) Can bones grow by cell division? True or False?
1) False
19) In bone resorption are there more osteoblasts or osteoclasts?
1) Osteoclasts
20) Which of the following is a preventative measure for osteoporosis?
D) All of above