8 Questions
Which hormone is produced in the parafollicular cells of the thyroid?
Calcitonin
What is the function of calcitonin?
Decreases blood calcium levels
How does calcitonin affect bone reabsorption?
It inhibits osteoclasts
What is the target tissue of calcitonin?
Bone
Which hormone is secreted from the parathyroid gland?
Parathyroid hormone
What is the function of parathyroid hormone?
Increases blood calcium levels
How does parathyroid hormone affect calcium within the bone?
It inhibits osteoclasts
What does parathyroid hormone increase the absorption of?
Calcium from food
Study Notes
Thyroid Hormones
- Calcitonin is produced in the parafollicular cells of the thyroid gland.
- The primary function of calcitonin is to decrease blood calcium levels.
Calcitonin's Effects
- Calcitonin inhibits bone reabsorption, reducing the breakdown of bone tissue.
- Calcitonin targets bone tissue, specifically osteoclasts, to reduce their activity.
Parathyroid Hormone
- Parathyroid hormone is secreted from the parathyroid gland.
- The primary function of parathyroid hormone is to increase blood calcium levels.
Parathyroid Hormone's Effects
- Parathyroid hormone stimulates bone reabsorption, increasing the breakdown of bone tissue and releasing calcium into the bloodstream.
- Parathyroid hormone increases the absorption of calcium from food in the intestines.
Test your knowledge on calcitonin, a hormone secreted by the thyroid gland that regulates blood calcium levels by promoting bone formation and inhibiting bone breakdown. Learn about its functions and how it differs from parathyroid hormone in this quiz.
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