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Structures of the Endocrine System

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...

What is the Endocrine System?

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.

An Overview of the Endocrine System

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...

The Endocrine System

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...

Neural Regulation

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

Endocrine Signaling

Endocrine Signaling

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Related Experiment Video

Updated: Apr 18, 2026

Human Neuroendocrine Tumor Cell Lines as a Three-Dimensional Model for the Study of Human Neuroendocrine Tumor Therapy

Human Neuroendocrine Tumor Cell Lines as a Three-Dimensional Model for the Study of Human Neuroendocrine Tumor Therapy

Published on: August 14, 2012

Neuroendocrine tumors, version 1.2015.

Matthew H Kulke, Manisha H Shah, Al B Benson

Journal of the National Comprehensive Cancer Network : JNCCN

|January 14, 2015

Summary

This summary is machine-generated.

This summary covers the diagnosis and management of sporadic neuroendocrine tumors (NETs) in the pancreas, gastrointestinal tract, lung, and thymus, based on NCCN guidelines.

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Human Neuroendocrine Tumor Cell Lines as a Three-Dimensional Model for the Study of Human Neuroendocrine Tumor Therapy

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Published on: August 14, 2012

Author Spotlight: Genetically Engineered Mouse Models and Pathological Characterization of Neurofibromatosis Type 1 Associated Tumors

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Area of Science:

Oncology
Endocrinology
Gastroenterology

Background:

Neuroendocrine tumors (NETs) are a diverse group of neoplasms.
NETs can manifest with or without hormonal hypersecretion symptoms.
NCCN guidelines provide a framework for NET diagnosis and management.

Purpose of the Study:

To present key aspects of the NCCN Clinical Practice Guidelines for Oncology.
To focus on the diagnosis and management of sporadic NETs.
To cover NETs of the pancreas, gastrointestinal tract, lung, and thymus.

Main Methods:

Review of the NCCN Clinical Practice Guidelines for Neuroendocrine Tumors.
Selection of content pertaining to sporadic NETs.
Focus on specific anatomical locations: pancreas, GI tract, lung, thymus.

Main Results:

Guidelines address both sporadic and hereditary NETs.
This selection emphasizes sporadic NETs.
Key sites include pancreas, GI tract, lung, and thymus.

Conclusions:

NCCN guidelines offer comprehensive guidance for NET management.
Sporadic NETs require specific diagnostic and management strategies.
Understanding NETs across different organs is crucial for effective treatment.