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Calcium & Phosphorus Metabolism: Dr. Halil Resmi 23.02.2024

12 Questions

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Calcium & Phosphorus Metabolism: Dr. Halil Resmi 23.02.2024

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Questions and Answers

What is the primary role of the parathyroid gland in calcium metabolism?

Controlling skeletal remodeling of calcium

Regulating intestinal absorption of calcium

Facilitating urinary excretion of calcium

Monitoring extracellular calcium levels and maintaining them within a precise range (correct)

Which of the following is NOT a process that requires precise calcium concentration in the body?

Intracellular signaling

Protein synthesis (correct)

Contraction of the heart and other muscles

Conduction of nervous impulses

Which portion of the total calcium in the blood is responsible for controlling physiologic processes?

The calcium complexed with anions such as citrate and phosphate

The calcium bound to circulating proteins

The ionized (unbound or "free") calcium (correct)

All portions of the total calcium contribute equally

Which of the following is NOT one of the key organs involved in calcium metabolism?

Liver Signup and view all the answers

What is the approximate range of serum total calcium concentration considered normal by most clinical laboratories?

8.8 - 10.5 mg/dL Signup and view all the answers

What percentage of the total calcium in the blood is bound to circulating proteins or complexed with anions?

50% - 60% Signup and view all the answers

Which of the following processes is NOT mentioned as requiring precise calcium concentration maintenance in the body?

Lipid metabolism Signup and view all the answers

Which of the following organs is NOT directly involved in the regulation of calcium metabolism?

Pancreas Signup and view all the answers

What is the primary function of the parathyroid gland in relation to calcium metabolism?

Monitoring extracellular calcium levels and maintaining them within a precise range Signup and view all the answers

Which of the following statements about calcium metabolism is NOT true according to the text?

The parathyroid gland is the only organ involved in regulating calcium metabolism Signup and view all the answers

What term is used in the text to refer to the portion of calcium that is not bound to proteins or complexed with anions?

All of the above Signup and view all the answers

Which of the following statements about the importance of calcium is NOT true?

Calcium is essential for the regulation of body temperature Signup and view all the answers