Parathyroid Hormone Works by Several Mechanisms to Maintain an Adequate

question 61

Multiple Choice

Parathyroid hormone works by several mechanisms to maintain an adequate level of calcium in the blood. Which of the following is a mechanism of parathyroid hormone action?

• A) stimulates release of calcitriol
• B) increases deposition of hydroxyapatite in the bone
• C) mobilizes Ca²⁺ from sarcoplasmic reticulum
• D) increases loss of calcium in urine

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