Calcium concentrations

Definition

Calcium concentrations refer to the levels of calcium present in the blood and tissues, crucial for various physiological functions. Maintaining proper calcium concentrations is vital for endocrine health, bone integrity, and neuromuscular function.

5 Must Know Facts For Your Next Test

1. Normal blood calcium levels range from 8.5 to 10.2 mg/dL.
2. Parathyroid hormone (PTH) and vitamin D play key roles in regulating calcium concentrations.
3. Hypocalcemia can result from insufficient dietary intake or endocrine disorders such as hypoparathyroidism.
4. Hypercalcemia may be caused by hyperparathyroidism or malignancy, leading to symptoms like kidney stones and osteoporosis.
5. Calcium homeostasis is essential for muscle contraction, nerve transmission, and hormonal secretion.

Review Questions

• What are the normal ranges for blood calcium levels?
• Which hormones are involved in the regulation of calcium concentrations?
• What are potential causes and symptoms of hypercalcemia?

Related terms

Parathyroid Hormone (PTH): A hormone secreted by the parathyroid glands that regulates serum calcium levels.

Hypocalcemia:

A condition characterized by abnormally low levels of calcium in the blood.

Vitamin D:

A fat-soluble vitamin that aids in the absorption of calcium from the gut into the bloodstream.