Difference Between Exocrine And Endocrine Glands Pdf

difference between exocrine and endocrine glands pdf

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Exocrine glands are glands that secrete substances onto an epithelial surface by way of a duct. Exocrine glands are one of two types of glands in the human body, the other being endocrine glands , which secrete their products directly into the bloodstream.

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Difference between Endocrine System and Exocrine System

A n organised collection of secretory epithelial cells. Most glands are formed during development by proliferation of epithelial cells so that they project into the underlying connective tissue. Other glands lose this direct continuity with the surface when their ducts degenerate during development. This is the parotid gland , a type of salivary gland. Can you identify the secretory acini and the ducts in this typical exocrine gland.

An endocrine gland secretes its products, for example hormones, directly into the blood. An example of an endocrine gland is the adrenal gland which secretes adenaline made in the adrenal medulla directly into the blood. An exocrine gland secretes its products for example enzymes, into ducts that lead to the target tissue. For example the salivary gland secretes saliva into the collecting duct which leads to the mouth. It's important to note that the pancreas performs both endocrine and exocrine functions. It releases insulin and glucagon directly into the blood endocrine and also secretes pancreatic fluid into the pacreatic duct which leads to the duodenum exocrine.

Endocrine is the collection of glands which produce hormones to regulate processes such as growth and development, reproduction and sexual function, metabolism and mood and sleep. These glands remove materials from the blood and process and secretes necessary product for use elsewhere in the body. Hormones produced by these glands circulate throughout the body and each hormone is marked toward specific organs and tissues. Similar to endocrine system, exocrine system is made up of glands that produce and secrete substances to protect or lubricate the human body. The substances produced by these exocrine glands travel through ducts. They are deposited onto epithelial surfaces: These epithelial cells have three unique shapes:. There are numerous conditions may affect the exocrine system and lead to over or under secretion of these glands.

Mechanism of secretion in endocrine glands

Endocrine Community. Email Print Discuss. Written by Robert M. Sargis MD, PhD.

Difference Between Exocrine and Endocrine

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Endocrine glands are the glands that secrete hormones without ducts, while exocrine glands secrete hormones through ducts. Secretory products are released to an internal organ or the external surface through a duct. Examples. Thyroid glands, parathyroid glands, pituitary glands, adrenal glands.

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