Describe the steps in bone repair
What will be an ideal response
after the break in the bone occurs, blood vessels in that area are damaged and blood surrounds the fracture. The blood solidifies to form a clot, which reduces bleeding. White blood cells migrate into the area to remove bacteria and damaged cells. Osteoclasts migrate in to remove dead bone matrix. Secondly, fibroblasts migrate into the fracture to form a plate of cartilage to prevent further movement and damage at the fracture site. Thirdly, osteoblasts invade to replace the cartilage with bone matrix in the form of spongy bone. Lastly, the bone matrix will be remodeled as compact bone replaces spongy bone.
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Which of the following tracts is correctly matched?
A) superior cerebellar peduncles: link cerebellum with nuclei in the spinal cord B) middle cerebellar peduncles: link cerebellum with nuclei in the pons C) inferior cerebellar peduncles: link cerebellum with nuclei in the cerebrum D) superior cerebellar peduncles: link cerebellum with nuclei in the medulla oblongata E) inferior cerebellar peduncles: link cerebellum with nuclei in the midbrain
A dysfunction of receptors for the protein hormone, leptin, can provoke:
a. Excessive phagocytosis by tissue macrophages b. Immunoglobulin deficiency c. Impaired synthesis of collagen d. Obesity e. Septic shock
A patient in a skiing accident is told that the lateral side of the ankle joint has been crushed. The bone that has been injured is the
A. femur. B. tibia. C. fibula. D. calcaneus. E. talus.
When a pet is put to sleep, owners can become angry, and can easily direct this anger at the veterinarian, who failed to save the pet
Indicate whether the statement is true or false