Which of the following is true of the bony matrix of the skeleton as people age
A)Its composition remains constant throughout life.
B)Its mineral content diminishes as a normal part of aging.
C)It gains calcium carbonate while losing calcium phosphate.
D)The proportion of collagen fibers in the matrix increases with age.
E)None of the answers are correct.

Question

Quizplus · Accepted Answer

As people age, the mineral content of the bony matrix diminishes due to a reduction in bone mineral density. This can make bones more brittle and prone to fractures, a condition known as osteoporosis. However, the composition of the matrix remains relatively constant, with a consistent balance of collagen fibers and mineral components. Calcium carbonate and calcium phosphate are both important components of the matrix, and losing one while gaining the other would upset this delicate balance. Therefore, options A, C, and D are not correct.

Which of the Following Is True of the Bony Matrix