Answer:
growth, the increases in cell size and number that take place during the life history of an organism.
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Mechanical stress applied to bone increases osteoblast activity in bone tissue, and the removal of mechanical stress decreases osteoblast activity.
Explanation:
Osteoblasts are cells , that are produced in the bone marrow and are responsible for formation of bones and bone matrix.
Whenever a mechanical stress is applied on the bones , a series of reactions are triggered. As a result the activities of osteoblast increases to synthesize more and more bone matrix to provide strength.
Again on the other hand a decrease in mechanical causes a decrease in the activities of the osteoblasts.
The abdominal cavity does not have a bony protection. The abdominal cavity is barely an unfilled space. It comprises a quantity of critical body organs containing the subordinate portion of the esophagus, the stomach, the small intestine, the colon, the rectum, the liver, the gall bladder, pancreas, spleen, kidneys, and bladder.
