Difference between revisions of "Thyroid Gland Flash Cards - Anatomy & Physiology"
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*Iodide trapping is the process by which Iodide molecules (I-) are concentrated in the colloid at a level up to 250x greater than the plasma level. | *Iodide trapping is the process by which Iodide molecules (I-) are concentrated in the colloid at a level up to 250x greater than the plasma level. | ||
− | *The Na+/I- symport in the basal membrane of the follicular cells moves the iodine from the plasma, into the cell. From here | + | *The Na+/I- symport in the basal membrane of the follicular cells moves the iodine from the plasma, into the cell. From here it is transported into the colloid. |
*The follicular cells and the pumps function in response to Thyroid Stimulating Hormone from the Pituitary Gland. | *The follicular cells and the pumps function in response to Thyroid Stimulating Hormone from the Pituitary Gland. | ||
|l7=Thyroid Gland - Anatomy & Physiology#Iodine Uptake | |l7=Thyroid Gland - Anatomy & Physiology#Iodine Uptake |
Revision as of 18:43, 16 February 2011
Question | Answer | Article | |
Describe embryological origin of the Thyroid Gland. | The thyroid gland is a downgrowth from the pharyngeal endoderm of the developing tongue.
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Describe the location of the thyroid gland, it's closely associated structures and anatomical landmarks. |
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Describe the blood supply and venous drainage of the Thyroid Gland. |
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The Thyroid gland consists of various sized follicles. What is the name of the cells which line the lumen of the follicles, and what is their function? | Follicular Cells - these synthesize thyroglobulin in their golgi apparatus. Thyroglobulin is a glycoprotein consisting of 70 linked tyrosine molecules and is the source of thyroid hormones.
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Label the following histological section: [[Image:ThyroidGlandFlashCard1.jpg |
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Which Letter represents the location of the C-Cells of the Thyroid Gland, and what is their function in 'Image 1' below? |
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Define and describe the process of Iodide Trapping. |
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Name the three hormones produced in the thyroid gland and describe how they are transported around the body? |
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What are Hormone A and Hormone B in this schematic diagram ('Image 2' below) of the Hypothalamic - Pituitary - Thyroid Axis: |
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Decribe the effects that T3 and T4 have on the following systems/physiological mechanisms: |
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Image 1 | ![]() |
Image 2 | ![]() |