S.N. |
Exocrine glands |
Endocrine glands |
1. |
These glands have ducts. |
These glands lack ducts. |
2. |
Chemical substance secreted by exocrine glands is called enzyme. |
They secrete a chemical substance called hormone. |
3. |
They secrete and release enzymes through ducts in the target site. |
They secrete and release their secretions directly into the blood stream. |
4. |
They are located near the target site (site of action). |
They are located far away from the target site. |
5. |
They help in short term activity. |
They help in long term activity related to different physiological activities of our body. |
6. |
Examples: Salivary glands, Intestinal glands, Tear glands etc. |
Examples: Pituitary gland, Thyroid glands, Adrenal glands etc. |