When Stress Is Applied to a Bone

question 43

Multiple Choice

When stress is applied to a bone,

• A) the minerals in the bone produce a weak electrical field that attracts osteoblasts.
• B) osteoclast activity increases and osteoblast activity decreases.
• C) the bone becomes thin and brittle and ultimately fractures.
• D) the bone compensates by becoming thinner in the region of stress.
• E) blood supply through the nutrient artery diminishes and thus remodeling proceeds at a much slower rate.

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Definitions:

Genotypes

The genetic constitution of an individual organism, distinct from its observable characteristics or phenotypes.

Phenotypes

Observable characteristics or traits of an organism resulting from the interaction of its genotype with the environment.

Plasticity

A property of the brain that causes it to change through experience, drugs, or injury.

Epigenetics

Epigenetics involves the study of changes in gene expression that do not involve alterations to the DNA sequence, often influenced by environmental factors.