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WorksheetsBone Formation and Remodeling Quiz
Total questions: 22
Worksheet time: 18mins
What type of bone can be found at this blue arrow?
(a)
What's this pink layer called at the blue arrow?
(a)
Which of the following is derived from the fusion of multiple hematopoietic stem cells?
A
B
C
D
Which of the following are formed from osteoblasts?
A
B
C
D
What kinds of cells are in the area labeled B?
(a)
Which of these are irregular bones?
tibia
humerus
metacarpals
tarsals
vertebrae
Which of these are short bones?
tibia
carpals
metacarpals
tarsals
vertebrae
Osteoblasts are derived from undifferentiated mesenchymal cells or (a) .
Osteoblasts are formed from osteoprogenitor and mesenchymal cells in what location(s)?
periosteum
endosteum
compact bone
yellow bone marrow
What do you call the organic matrix of bone that osteoblasts secrete?
(a)
Which of these are characteristics of osteoid?
60-70% type I collagen
includes proteoglycans
>80% type II collagen
forms calcium oxalate crystals
>90% type I collagen
Osteoid mineralizes following increase of calcium and...
(a)
How long does mineralization of osteoid in humans take?
2-3 days
2-3 weeks
1-2 months
1-2 years
What allows osteocytes to contact each other?
blood vessels
canaliculi
lacunae
osteoblasts
proteoglycans
Which of these are potential "fates" of osteoblasts?
osteocytes
osteoclasts
apoptosis
bone-lining cells
osteoprogenitor cells
Osteoclasts are often located in what spaces? (be specific)
(a)
Which of these do osteoclasts release?
H+
CO2
lysosomal enzymes
type I collagen
proteoglycan
What is the primary signal for pre-osteoclasts cells to differentiate into osteoclasts?
(a)
Which of the following are true about osteoclast differentiation?
PTH binds to osteoclast PTH receptors
PTH binds to osteoblast PTH receptors
osteoclasts release RANKL
osteoblasts release M-CSF
binding to RANK receptors on pre-osteoclasts
Osteoprotegerin production by osteoblasts is stimulated by what hormone?
(a)
What does osteoprotegerin do?
stimulates bone resorption
binds to RANKL
binds to RANK
inhibits bone formation
What law refers to the capacity for functional adaptation of bone - responding to external strain through modification of form?
(a)
