Which of the Following Statements About Bone Remodeling and Repair

question 95

Multiple Choice

Which of the following statements about bone remodeling and repair is correct?

• A) Bone remodeling involves removal of old bone by osteoblasts.
• B) As a long bone increases in diameter, the size of the marrow cavity decreases.
• C) The rate of bone remodeling increases in the elderly.
• D) Exposure of a bone to increased mechanical stress can lead to bone remodeling.
• E) Bone remodeling does not involve the activity of the osteoclasts and the osteoblasts.

---

Definitions:

Presynaptic Vesicles

Membrane-bound sacs located in the presynaptic terminal of a neuron containing neurotransmitters that are released into the synaptic cleft upon stimulation.

Axon Terminals

The endings of axons responsible for releasing neurotransmitters to send signals across synapses to other neurons.

Axon Hillocks

A specialized part of the cell body (or soma) of a neuron that connects to the axon, playing a critical role in the generation of action potentials.

Neurofibrils

Fine, filamentous structures within nerve cells that provide support and are involved in the transmission of impulses.