How Is Vitamin D (Vitamin D3) Related to Calcium Homeostasis

question 40

Multiple Choice

How is vitamin D (vitamin D3) related to calcium homeostasis in bone?

• A) Vitamin D provides a framework for calcium in the matrix.
• B) Vitamin D is regulated by osteoclast activity.
• C) Vitamin D is produced by osteoblasts during endochondral ossification.
• D) Vitamin D is involved in calcium absorption by the digestive tract.
• E) Vitamin D replaces calcium in the skeleton.

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Definitions:

Cholecystography

A diagnostic imaging procedure used to visualize the gallbladder, typically involving the use of a radiopaque contrast medium.

Tomography

Imaging by sections or sectioning, using any kind of penetrating wave, to create a three-dimensional image of the inside of an object.

Myelogram

A radiographic examination of the spinal canal and nerve roots by injecting contrast dye to detect abnormalities or injuries.

Sialography

A diagnostic imaging technique that uses a radiopaque dye to visualize and evaluate the salivary glands and ducts.