MUSCLE NERVE CARTILAGE BONE
BONE FORMATION JOINTS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Bones start to weaken(2) the growth of new capillaries
|
|
|
Calcium levels in the blood and (2) the pull of gravity and muscles on the skeleton.
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Bone remodeling is the result of two opposite activities, the production of new bone matrix by osteoblasts and the destruction of old bone by osteoclasts.
Detailed explanation-2: -Both parathyroid hormone and calcitonin help regulate the level of calcium in your blood, which is necessary for several important bodily functions. The difference is how they do so and how much they affect your calcium levels.
Detailed explanation-3: -PTH is released in response to low blood calcium levels. It increases calcium levels by targeting the skeleton, the kidneys, and the intestine. In the skeleton, PTH stimulates osteoclasts, which are cells that cause bone to be reabsorbed, releasing calcium from bone into the blood.
Detailed explanation-4: -This process of skeletal change is known as bone remodeling, which both protects the structural integrity of the skeletal system and metabolically contributes to the body’s balance of calcium and phosphorus.