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A human body has several glands that produce various secretions, including saliva, sweat, hormones, and oil.
Anatomically these glands are extensively classified into two main categories based on the absence or presence of ducts.
One is the Endocrine gland, and the other is the exocrine gland.
Endocrine glands are the ones that secrete the hormones devoid of ducts. In contrast, the exocrine glands secrete the hormones through ducts.
Endocrine glands are the ductless glands of the human body that directly release the hormones in the bloodstream. An endocrine system comprises several endocrine glands responsible for the various processes occurring in the body.
Endocrine glands are considered complex ones, including a few examples like thyroid, pituitary, adrenals, etc.
Exocrine glands are the ones that have duct associated with it. Here the secretions are released to some internal organs or the body’s outer surface with the help of a duct.
The exocrine glands’ secretory products include mucous, enzymes, and other substances. These are considered simple, comparatively endocrine glands.
Understanding the difference between Endocrine Glands and Exocrine Glands
|Parameters||Endocrine Glands||Exocrine Glands|
|Ducts||Endocrine glands do not have any ducts||Exocrine glands have ducts|
|Secretion Route||Here the secretory products are released directly into the bloodstream and eventually reach the target organ.||Here secretory products are released to an external surface or internal organ through a duct.|
|Secretory Products||Hormones||Enzymes, sweat, sebum, mucus|
|Examples||Parathyroid glands, Adrenal glands, Pituitary glands, thyroid glands||Pancreas, salivary glands, Brunner’s gland, liver, Oesophagal glands.|
|Secretions Nature||Endocrine glands secrete hormones that are the chemical substances in the body.||Exocrine hormones secrete digestive juices and other excretory products including sweat.|
The major difference between endocrine and exocrine glands is that the endocrine gland secretes its products directly into the blood. In contrast, Exocrine glands secrete the products into the ducts, which further leads to the targeted tissue.
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