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Related Concept Videos

Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
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Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
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Major Hormones and Their Functions01:27

Major Hormones and Their Functions

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Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
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Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
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Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

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Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
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The Thyroid Gland01:23

The Thyroid Gland

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
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Related Experiment Video

Updated: Apr 6, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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Hyponatremia and the Thyroid: Causality or Association?

Kevin M Pantalone, Betul A Hatipoglu

    Journal of Clinical Medicine
    |August 4, 2015
    PubMed
    Summary

    This review examines the historical link between hypothyroidism and serum hyponatremia. It explores recent evidence suggesting this connection may be associative rather than causal, focusing on thyroid function and low sodium levels.

    Area of Science:

    • Endocrinology
    • Nephrology

    Background:

    • Hypothyroidism has been historically linked to serum hyponatremia.
    • Recent research questions the direct causal relationship, proposing an association instead.

    Purpose of the Study:

    • To review the literature on the thyroid's role in serum hyponatremia.
    • To critically evaluate the association between hypothyroidism and hyponatremia.

    Main Methods:

    • Literature review of existing studies.
    • Analysis of historical and contemporary research on thyroid disorders and hyponatremia.

    Main Results:

    • The direct causal link between hypothyroidism and hyponatremia is debated.
    • The association may be explained by confounding factors or shared underlying mechanisms.
    Keywords:
    electrolyteshyponatremiahypothyroidismthyroid

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    Conclusions:

    • The relationship between thyroid dysfunction and hyponatremia requires further investigation.
    • Distinguishing direct causality from association is crucial for accurate diagnosis and treatment.