Difference Between Endocrine and Exocrine Glands

The human body has many glands which produce many secretions, such as sweat, saliva, oil and hormones. Anatomically, these glands are broadly classified into two types based on the presence or absence of ducts. Endocrine glands are the glands that secrete hormones without ducts, while exocrine glands secrete hormones through ducts. Read on to explore more differences between the two.

Difference Between Exocrine Glands and Endocrine Glands
Endocrine Glands
Exocrine Glands
Endocrine glands do not have ducts Exocrine glands have ducts
Secretory Products
Hormones Sweat, enzymes, mucus, sebum
Route of Secretion
Secretory products released directly into the bloodstream, eventually reaching the target organ. Secretory products are released to an internal organ or the external surface through a duct.
Thyroid glands, parathyroid glands, pituitary glands, adrenal glands. Salivary glands, pancreas, liver, Brunner’s glands, oesophagal glands

Further Reading

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