Question

2. Jerry, a 42-year-old male, is experiencing excessive appositional growth. Determine his condition, the cause of his condition, and explain the impact on his bones. 3. Relate puberty and increased testosterone and estrogen production to the relative heights of men and women. 4. Who experiences a greater amount of bone deposition: a person who routinely exercises or a sedentary person? Explain your choice. 5.A hypothetical drug reduces osteoblast activity, but has no effect on osteoclast activity. Predict the effects of this hypothetical drug on bone resorption and bone deposition.

Answer 1

2.Ans : The condition is acromegaly because the appositional bone growth is developed during adulthood(middle age) .Appositional growth is the increase in diameter (width) of the bones.The condition is due to the growth hormones secreted by anterior pituitary gland which enhances the protein synthesis and division of cells in the nearby tissues. This process stimulates osteoblasts in periosteum and triggers appositional growth of the bones results in increase in  width as well as length.