Fibrocartilaginous callus formation

What will be an ideal response?


Second step of fracture repair. Capillaries grow into hematoma, phagocytic cell clear debris. Fibroblasts secrete collagen fibers to span break and connect broken ends. Fibroblasts, cartilage, and osteogenic cells begin reconstruction of bone. This mass of repair tissue is called fibrocartilaginous callus.

Biology & Microbiology

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A.  rice. B.  human. C.  fruit fly. D.  yeast.

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The basic excretory unit in the protonephridia of flatworms is a:

A. scolex B. flame cell C. cnidocil D. ganglion E. cercaria

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Which era is the oldest?

a. Paleozoic b. Cretaceous c. Mesozoic d. Cambrian e. Phanerozoic

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The term "operon" comes from the Latin root word for

A. gene. B. controller. C. structure. D. copy-producing. E. works.

Biology & Microbiology