ENDOCRINE |
EXOCRINE |
These secrete substances (hormones) into the blood or lymph. |
It releases its secretion external to or surface of an organ with the help of canal (ducts). |
It is a ductless gland |
It may or may not have ducts. (ducts are often present). |
Secretes into the blood |
Secretes directly at the site of action. |
Secretes hormones |
Secretes enzymes, lubricants or excretory. |
Target of the gland is located far away from the gland |
Target of the gland is very close to the gland. |
Examples- thyroid gland, pituitary gland |
Examples- gastric glands, salivary glands, sweat glands. |
Functions are for metabolism, growth, development, water and electrolyte balance. |
Functions are of regulating body temperature by producing sweat. |
the above mentioned characters are the ones which distinguish endocrine and exocrine glands.
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