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

Ducts

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.

Examples

Thyroid glands, parathyroid glands, pituitary glands, adrenal glands.

Salivary glands, pancreas, liver, Brunner’s glands, oesophagal glands

Further Reading

Explore more differences between exocrine and endocrine glands by registering at BYJU’S Biology.

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