Glands are important and present throughout the body. Firstly, what is a gland?
A gland is a group of cells or a secreting organ that excretes a chemical substance. This substance can take the form of hormones, sweat, saliva, mucus, or acids.
There are two types of glands: Exocrine glands and Endocrine glands
- Exocrine glands have ducts
- Exocrine glands secrete enzymes on to the surface.
- Examples: salivary glands(oral), sebaceous and sweat glands (in the skin), brunner’s glands etc;
- Endocrine glands do not have ducts.
- The hormones are secreted by the endocrine system.
- The hormones are secreted into the bloodstream. Because of this, the hormones can act over long distances, and reach any organ in the body to coordinate activity.
- Examples: thyroid, parathyroids, adrenals, pituitary etc;
Let’s summarize the Difference between Exocrine glands and Endocrine Glands
Difference between Exocrine Glands and Endocrine Glands:
|exocrine glands||endocrine glands|
|Exocrine glands contain ducts||These are Ductless glands|
|Mucous, enzymes, metabolites||Hormones|
|Secretion reaches the target organ or internal organ and from there it reaches ducts which are assisted.||Secretions are directly poured into the blood.|
|The concentration of secretions varies causing no effect.||The concentration of secretions varies causing diseases/ disorders.|
|Exocrine glands functioning are simple.||Endocrine glands functioning are complex.|
|Term of control|
|These glands have short term control of the target organ.||These glands have long term control.|
As a result of the preceding discussion, there are even some exceptions of this they are as follows.
Exception of this is pancreas/ composite glands because it is both exocrine and endocrine glands.
- The parts of exocrine for exception are pancreatic juice.
- The parts of endocrine for exception are insulin and glucagon.
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