Calcium Homeostasis

Front

What hormone stimulates Vitamin D to increase calcium uptake in the intestines?

Back

Parathyroid Hormone (PTH)

Front

What condition is characterized by high levels of calcium in the blood?

Back

Hypercalcemia

Front

What type of cells does calcitonin stimulate to promote bone formation?

Back

Osteoblasts

Front

Which body functions are supported by calcium?

Back

Helps muscles contract, keeps nerves healthy, builds strong bones and teeth.

Front

Which gland releases calcitonin when calcium levels increase?

Back

Thyroid gland

Front

What is the role of Parathyroid Hormone (PTH) in calcium homeostasis?

Back

PTH increases blood calcium levels by stimulating osteoclasts, increasing intestinal absorption of calcium, and reducing calcium excretion in kidneys.

Front

What is the function of calcitonin in calcium regulation?

Back

Calcitonin lowers blood calcium levels by inhibiting osteoclast activity and promoting calcium deposition in bones.

Front

How does Vitamin D contribute to calcium homeostasis?

Back

Vitamin D enhances intestinal absorption of calcium and phosphate, promoting bone health.

Front

What is the relationship between calcium and muscle contraction?

Back

Calcium ions are essential for muscle contraction as they facilitate the interaction between actin and myosin.

Front

What are osteoclasts and their role in calcium homeostasis?

Back

Osteoclasts are cells that break down bone tissue, releasing calcium into the bloodstream.