Endocrine Glands:-

1. They do not have ducts.

2. They release Hormones.

3. Secretory products are released directly into the bloodstream, eventually reaching the target organ.

4. Thyroid glands, Parathyroid Glands, Pituitary glands are some examples

Exocrine Glands:-

1. They contain ducts.

2. They release sweat, enzymes, mucus and sebum.

3. Secretory products are released to an internal organ or the external surface through a duct.

4. Salivary Glands, Liver, Oesophagus glands are some examples.