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Questions and Answers
What is the role of thyroid hormone in the immature individual?
What is the role of thyroid hormone in the immature individual?
What is the composition of the fluid found in the lumen of thyroid follicles?
What is the composition of the fluid found in the lumen of thyroid follicles?
Which cells in the thyroid gland produce the polypeptide hormone calcitonin?
Which cells in the thyroid gland produce the polypeptide hormone calcitonin?
What is the approximate weight of the human thyroid gland?
What is the approximate weight of the human thyroid gland?
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Where are the lateral lobes of the thyroid gland located?
Where are the lateral lobes of the thyroid gland located?
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Study Notes
Role of Thyroid Hormone in Immature Individuals
- Thyroid hormone is crucial for growth and development, influencing metabolism and energy levels during childhood.
- It supports neurological development, particularly in the brain, contributing to cognitive abilities and overall mental function.
- Maintains proper bone development and maturation; essential for normal skeletal growth.
Composition of Follicular Lumen Fluid
- The fluid in the lumen of thyroid follicles is primarily composed of colloid, which contains thyroglobulin.
- Thyroglobulin is a glycoprotein precursor that gets converted into thyroid hormones (T3 and T4) when stimulated by thyroid-stimulating hormone (TSH).
Cells Producing Calcitonin
- C-cells, also known as parafollicular cells, are responsible for the production of the polypeptide hormone calcitonin.
- Calcitonin regulates calcium levels in the blood, promoting calcium deposition in bones and reducing blood calcium concentration.
Approximate Weight of the Human Thyroid Gland
- The average weight of the adult human thyroid gland ranges from 15 to 30 grams.
- Its weight may vary based on individual factors such as age, gender, and overall health.
Location of Lateral Lobes of the Thyroid Gland
- The lateral lobes of the thyroid gland are located on either side of the trachea, situated below the Adam's apple (laryngeal prominence).
- These lobes extend upwards towards the level of the cricoid cartilage.
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Description
Test your knowledge of thyroid gland disorders with this quiz designed by Dr. Reem Tarek Attia, a lecturer of Pharmacology and Toxicology at Future University in Egypt. Explore the physiological role of the thyroid gland and its involvement in growth and development.
