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Related Concept Videos

Endocrine Signaling01:45

Endocrine Signaling

Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
What is the Endocrine System?00:46

What is the Endocrine System?

The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
The Endocrine System01:29

The Endocrine System

The endocrine system is an extensive network of glands – organs or tissues in the body that create chemicals that control many bodily functions, that secrete hormones, which are chemical messengers that play essential roles in regulating various bodily functions. These hormones are secreted into the bloodstream and travel throughout the body. They require specific receptors to convey signals to cells possessing these corresponding receptors. This complex signaling mechanism ensures that every...
Structures of the Endocrine System00:59

Structures of the Endocrine System

The intricate framework of the endocrine system encompasses a diverse array of glands, with their target tissues and organs strategically distributed throughout the body. Central to this network are the endocrine glands, specialized structures that lack ducts and release hormones directly into the interstitial fluid. Notably, the hypothalamus, a vital neuroendocrine organ situated in the brain, governs neural functions and serves as a potent source of hormonal regulation. Near the hypothalamus...
An Overview of the Endocrine System01:10

An Overview of the Endocrine System

The endocrine system, a complex network of glands, orchestrates physiological balance within the body through the production and secretion of hormones. These hormones are chemical messengers in intercellular communication, acting as conduits between the secretory cells and distant target sites. They traverse the circulatory system by being released into the extracellular fluid, and their impact is specific to cells possessing receptors for a particular hormone.
The endocrine system collaborates...

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Related Experiment Video

Updated: Jun 21, 2026

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[1791: a decisive moment in endocrine surgery].

Yves Chapuis

    Histoire Des Sciences Medicales
    |July 8, 2009
    PubMed
    Summary
    This summary is machine-generated.

    A 24-year-old woman underwent giant frontal cervical tumor removal in 1791. This groundbreaking surgery by Pierre Joseph Desault marked a significant shift in goiter treatment approaches.

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    Published on: January 3, 2020

    Area of Science:

    • Medical History
    • Surgical Innovation
    • Endocrinology

    Context:

    • Historical medical case at Hôtel-Dieu, Paris in 1791.
    • Patient presented with a large frontal cervical tumor.
    • Surgical intervention was necessitated by tumor size.

    Purpose:

    • To document a significant surgical procedure in the late 18th century.
    • To highlight advancements in goiter treatment.
    • To analyze the impact of Pierre Joseph Desault's surgical approach.

    Summary:

    • A 24-year-old female patient with a massive frontal cervical tumor was treated.
    • The surgery was performed by chief surgeon Pierre Joseph Desault.
    • This procedure represented a major advancement in the surgical management of goiter.

    Impact:

    • The operation signified a paradigm shift in treating cervical tumors and goiter.
    • It laid the groundwork for modern surgical techniques in endocrinology.
    • Demonstrated early 19th-century surgical innovation and its clinical application.