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The Importance of Exocrine And Endocrine Glands In Human Body

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Before understanding the endocrine and exocrine definition, you need to know what a gland is and how it is an essential part of the human body. A gland is a group of cells in a body that synthesizes substances to perform specific functions. Hormones and bloodstream are two main substances that glands release.

 There are mainly two types of glands in a human body, that are, endocrine and exocrine. These two glands have different and significant roles to play. Keep reading to know how endocrine and exocrine are essential parts of the human body and how do they help in maintaining the overall health.

Exocrine and endocrine gland definition

Endocrine glands are the cells of the endocrine system. This type of glands secretes their product hormones directly into the blood rather than through a duct. Similarly, exocrine glands are the glands of exocrine systems that secrete substances onto an epithelial surface through a duct.

This is the fundamental difference when you study endocrine vs exocrine glands. The human body is composed of these two glands without which the whole mechanism of the human body cannot run. Keep reading to know some of the integral glands that fall under the endocrine and exocrine systems.

Endocrine vs exocrine-everything you need to know

Different types of sub-glands come under endocrine and exocrine. Read on to know in details.

Glands that fall under the endocrine system:-

Pituitary Glands:

This gland hangs from the base of the brain to the pituitary stalk. Bones enclose the gland. This gland has two sections- one is the glandular portion of the anterior pituitary and a neutral portion of the posterior pituitary. It is also an extension of the hypothalamus. It regulates the hormonal output of the anterior pituitary and creates two hormones that it exports to the posterior pituitary for storage and later release.

Thyroid gland:

This gland is located at the front of the neck beside the thyroid cartilage. It is shaped like a butterfly with two wings connected by a central isthmus. The thyroid hormones are related to the endocrine gland, and it also increases cellular metabolism. Hormone TSH stimulates the secretion of this gland.

Adrenal glands:

The adrenal glands are located above the kidneys in humans. This gland produces a variety of hormones. The hormones include adrenaline and the steroids aldosterone and cortisol. This gland controls the behaviour during any crisis and emotional situation.

These are the main elements that form the endocrine systems. Apart from that, there are other glands like the pancreas, pineal gland; Gonads are also a part of endocrine glands.

Glands that fall under exocrine system:-

Exocrine glands release hormones in the bloodstream. There are different classifications of exocrine systems. Some of the common components of exocrine glands are as follows:

  •  Serous cells
  •  Mucous cells
  •  Salivary glands
  •  Parotid gland
  •  Sebaceous gland
  • Oesophagal gland

The distinction of the gland is according to the type of hormones they secrete. According to the cells, the exocrine gland definition change.

Difference between exocrine and endocrine glands

The exocrine definition says that the glands that secrete the hormone through a duct are called exocrine gland. For example, sweat, saliva, semen are parts of exocrine systems. Here are some of the differences between endocrine and exocrine of the human body.

According to many experts, there is a thin line between endocrine and exocrine systems. Exocrine glands have a duct to let their secretion out, for examples, enzymes are a part of exocrine glands secretion which lead to the target tissue. Saliva is another example that leads to mouth.

On the other hand, endocrine does not have any gland duct to release the hormone. It releases the hormone into the bloodstream. Therefore, these glands mostly face hormonal imbalance problems, and it often leads to serious illness.

Some of the common endocrine glands also have exocrine components. This type of glands is called mixocrine glands, for example, the liver and pancreas have both endocrine and exocrine glands.

These two glands play a significant role in keeping your health perfect.

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Jack Williams

I am Jack Williams, a Biochemist by profession. However, I developed a flair for writing while working on my Bio dissertations at university. So, I decided to take his passion to another level by stepping into the field of English essay writing. Ever since I have not only been learning the essentials of English writing but also been sharing my learning with students. My blog posts are intended to help not only students learn the technicalities of essay writing but also enable them to face related changes head-on. When I am not researching in my lab or sharing my valuable learning, you can find me playing soccer with my buddies or painting something that touched my heart and inspired me. 

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