endocrine glands

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en·do·crine glands

glands that have no ducts, their secretions being absorbed directly into the blood; collectively, these glands constitute the endocrine system.

en·do·crine glands

(en'dō-krin glandz) [TA]
Glands that have no ducts, their secretions being absorbed directly into the blood.
Synonym(s): ductless glands.

endocrine glands (enˑ·dō·krin glandz′),

n.pl ductless glands of the endocrine system that secrete hormones directly into the bloodstream.
Enlarge picture
Endocrine glands.

en·do·crine glands

(en'dō-krin glandz) [TA]
Glands that have no ducts, their secretions being absorbed directly into the blood.


1. secreting internally.
2. pertaining to internal secretions; hormonal.

endocrine cells
are either gathered together in specific endocrine glands or scattered diffusely through other tissue, e.g. in the walls of the gastrointestinal tract and the pancreas in which the cells are clustered together into islands.
endocrine dermatosis
skin changes accompanying many diseases of the endocrine glands such as hypothyroidism, hyperadrenocorticism and hypopituitarism.
endocrine glands
included are the pituitary, thyroid, parathyroid and adrenal glands, gonads, pancreas and paraganglia.
endocrine system
organs or groups of cells that secrete regulatory substances that are released directly into the circulation (hormone). The endocrine or hormonal system and the nervous system are the two major control systems of the body, and their functions are interrelated. Hormonal activity is mostly concerned with regulating metabolic activities by controlling the rates at which chemical reactions take place within cells, the transport of substances across the cell membrane, and activities related to growth and reproduction. The word hormone is applied to substances released by the endocrine glands that have physiological effects on target organs (which can be other endocrine glands) and tissues distant from the gland. There are, however, local hormones (autacoids) secreted at the site of the tissue being affected, for example, acetylcholine and serotonin.
endocrine tumor
adenoma or carcinoma; usually only one cell type, that of the normal tissue, but may be more than one type of cell capable of secreting more than one hormone.
References in periodicals archive ?
Balancing the endocrine system is one of these, and protocol should involve strengthening the endocrine glands and balancing hormonal production through nutrition, bioidentical hormones, and vitamin, herbal, and other supplements.
Hormones are chemicals produced by endocrine glands that travel through the bloodstream and cause responses in other parts of the body.
Endocrine glands are different from other organs in the body because they release hormones into the bloodstream.
Laycock and Meeran (Imperial College London, UK) teach students in biomedical sciences, pharmacology, bioengineering, and pre-clinical medicine about the endocrine glands, their hormones, and how their function relates to homeostasis.
Carrot juice when taken every day prevents bodily infections and is claimed to be valuable for the adrenal glands (the small endocrine glands situated above the kidneys), it added.
Endocrine glands secrete hormones directly into the bloodstream; these are called ductless glands.
Subsequent chapters cover various body parts and systems, including the skeletal and muscular tissues, the cardiovascular system, swim and gas bladders, and endocrine glands.
Now, researchers are looking at effects on endocrine glands, including the thyroid.
The drug is used in greatly extending the lives of dogs suffering from Cushings Disease, a fatal disorder which effects endocrine glands.
The iron is deposited in various organs, mainly the liver, but also the pancreas, heart, endocrine glands and joints.
These seven centers are located along the spinal cord where there is an increase in volume of nerve ganglia and plexus plus endocrine glands.
Rarely, it may occur in combination with autoimmune failure of other endocrine glands (autoimmune polyendocrinopathy syndrome type 2, previously known as Schmidt's syndrome).