What Is the Mechanism by Which the Parathyroid Glands Maintain

question 1

Multiple Choice

What is the mechanism by which the parathyroid glands maintain calcium homeostasis?

• A) They secrete parathyroid hormone (PTH),which promotes calcium storage in the intestines.
• B) They produce a hormone that,with calcitonin,takes calcium from the bones and promotes calcium absorption by the intestines.
• C) They stimulate the pituitary to produce PTH and calcitonin,which elevates serum calcium levels.
• D) They secrete hormones that stimulate the production of calcium in the bones and small intestines when serum calcium levels fall below 4.5 mg/dl.

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Definitions:

Agency Relationship

The legal arrangement where one party, the agent, acts on behalf of another, the principal, within the scope of authority granted by the principal.

Principal Had Dealt

A legal principle indicating acts or decisions made by an agent are legally binding on the principle if the agent acts within their authority.

Agent's Functioning

The actions carried out by an agent on behalf of a principal in the course of their agency relationship.

Fiduciary Duty

A legal obligation of one party to act in the best interest of another when in a position of trust, such as between a trustee and the beneficiaries.