Endocrine gland: it is a ductless gland,no ducts are attached to this
2: the internal secretion of these glands are known as hormones.
3: important endocrine glands are pituitary gland, thyroid gland, adrenal sex glands etc.
4: endocrine glands are complex
exocrine gland: they are the duct glands, and attached with specific duct.
2: the secretary products are enzymes and other substances
3: exocrine glands are simple
4: important exocrine glands are salivary glands, liver,pancreas etc.

Endocrine Glands:
Endocrine glands are a type of glands in the body that secrete hormones directly into the bloodstream. These glands do not have ducts and are responsible for regulating various bodily functions and maintaining homeostasis. Some examples of endocrine glands include the pituitary gland, thyroid gland, adrenal glands, and pancreas.

Exocrine Glands:
Exocrine glands, on the other hand, are glands that secrete their products into ducts, which then carry the secretions to a specific location. These glands release their secretions onto body surfaces or into body cavities. Examples of exocrine glands include sweat glands, salivary glands, and sebaceous glands.

Differences between Endocrine and Exocrine Glands:
1.Structure:
- Endocrine glands are ductless and release hormones directly into the bloodstream.
- Exocrine glands have ducts and secrete their products onto body surfaces or into body cavities.

2. Secretions:
- Endocrine glands secrete hormones, which are chemical messengers that travel through the bloodstream to target cells or organs.
- Exocrine glands secrete various substances such as sweat, saliva, enzymes, or sebum.

3. Target:
- Endocrine glands typically target distant tissues or organs.
- Exocrine glands target nearby cells or organs.

4. Mode of Transport:
- Endocrine gland secretions are transported through the bloodstream to reach their target cells or organs.
- Exocrine gland secretions are transported through ducts to reach their destination.

5. Regulation:
- Endocrine glands are regulated by negative feedback mechanisms and maintain homeostasis in the body.
- Exocrine glands are regulated by neural or hormonal signals.

6. Examples:
- Examples of endocrine glands include the pituitary gland, thyroid gland, adrenal glands, and pancreas.
- Examples of exocrine glands include sweat glands, salivary glands, and sebaceous glands.

Overall, the main difference between endocrine and exocrine glands lies in their structure, mode of secretion, target, and regulation. Endocrine glands release hormones directly into the bloodstream, while exocrine glands secrete their products through ducts onto body surfaces or into body cavities. Understanding these differences is crucial in comprehending the various functions and mechanisms of the human body.