How many stages are there in repair of simple bone fracture?
a) two
b) three
c) four
d) five
Explanation: 1. Hematoma formation, 2. Fibrocartilaginous callus formation, 3. Bony callus formation and 4. Bone remodelling
A mass of clotted blood around the fractured bone is called……..
a) cartilaginous callus
b) hematoma
c) bony callus
d) all of these
Explanation: hematoma is clotted blood (hemorrhage) surrounding tissue
What happen after hematoma formation during repair of simple fracture bone?
a) swelling
b) pain
c) inflammation
d) all of these
What happens after hematoma formation in repair of fracture?
a) capillaries grow into the hematoma
b) phaghocytic cell clean the debris
c) soft callus formation
d) all of these
Which of the following cells invade the fracture site and begin reconstructing bone?
a) oesteocytes and osteoclasts
b) fibroblasts
c) osteoblasts
d) both a and c
Which of the following cells produce collage fibers and differentiate into chodroblasts that secrete cartilage matrix?
a) fibroblasts
b) oesteocytes and osteoclasts
c) osteoblasts
d) both a and c
Explanation: A fibroblast is a type of cell that contributes to the formation of connective tissue
