Karlee Schmit

Written by Karlee Schmit

Modified & Updated: 29 May 2024

Sherman Smith

Reviewed by Sherman Smith

Source: Medicalnewstoday.com

The submandibular gland is an extraordinary organ in the human body that plays a crucial role in our overall health and well-being. Located beneath the lower jaw, this gland is responsible for producing and secreting saliva, which aids in digestion and lubricates the mouth and throat. Beyond its primary function, the submandibular gland has some fascinating facts that make it even more intriguing.In this article, we will explore 19 extraordinary facts about the submandibular gland that will not only deepen your understanding of this often-overlooked organ but also amaze you with its incredible capabilities. From its unique structure to its role in dental health and even its involvement in certain medical conditions, you will discover how this small yet powerful gland impacts various aspects of our bodily functions.So, get ready to delve into the fascinating world of the submandibular gland as we uncover some remarkable facts that will leave you in awe of this hidden gem in our anatomy.

Key Takeaways:

  • The submandibular gland is a key player in keeping our mouths healthy, producing most of our saliva and aiding in digestion and taste sensation.
  • Problems with the submandibular gland can lead to dry mouth, difficulty in speaking and swallowing, and an increased risk of dental decay. Regular check-ups and good oral hygiene are crucial for its health.
Table of Contents

The submandibular gland is the second-largest salivary gland in the human body.

It is only surpassed in size by the parotid gland, which is the largest of the three salivary glands.

This gland is responsible for producing approximately 70% of the saliva in the mouth.

Saliva plays a vital role in lubricating the oral cavity, aiding in digestion, and protecting the teeth and gums from bacteria.

The submandibular gland is located beneath the lower jawbone on both sides of the face.

It is situated in a sublingual space, under the tongue, and extends backward into the neck.

The secretion produced by the submandibular gland is a mixed saliva.

This means it contains both serous fluid, which is watery and protein-rich, and mucous fluid, which is thick and slimy.

The submandibular gland is innervated by the facial nerve (cranial nerve VII).

This nerve controls the movement and function of the gland.

In some cases, the submandibular gland can develop stones or calculi.

These stones can cause blockages in the ducts and lead to pain and swelling in the gland.

The submandibular gland plays a crucial role in the sense of taste.

Saliva secreted by this gland contains enzymes that help break down food particles and enhance the taste buds’ sensitivity.

The submandibular gland is responsible for moistening and lubricating the oral cavity.

It helps in swallowing and speech production by providing adequate moisture to the mouth.

Dysfunctions or disorders of the submandibular gland can lead to xerostomia, or dry mouth.

This condition can cause difficulty in speaking, swallowing, and an increased risk of dental decay.

The submandibular gland has multiple ducts through which saliva is released.

The main duct, known as Wharton’s duct, opens into the floor of the mouth near the frenulum.

The submandibular gland is rich in blood vessels.

These blood vessels supply oxygen and nutrients to the gland, ensuring its proper functioning.

Inflammation of the submandibular gland is known as sialadenitis.

This condition can be caused by infections, blockages, or autoimmune disorders.

The submandibular gland can produce up to 1.5 liters of saliva per day.

This continuous production helps in maintaining the moisture balance in the mouth.

The submandibular gland is not only involved in digestion but also aids in wound healing.

Saliva secreted by the gland contains growth factors that can promote tissue regeneration.

The submandibular gland can be affected by certain medications.

Some drugs can alter saliva production, causing either excessive salivation or dry mouth.

In rare cases, tumors can develop in the submandibular gland.

These tumors can be benign or malignant and may require surgical removal or other treatment methods.

The submandibular gland is influenced by both the sympathetic and parasympathetic nervous systems.

These systems control the rate of saliva production based on different physiological and emotional factors.

Disorders of the submandibular gland can cause pain and swelling in the lower jaw area.

These symptoms should be evaluated by a healthcare professional for proper diagnosis and treatment.

The submandibular gland plays a crucial role in maintaining oral health and overall well-being.

Regular dental check-ups and good oral hygiene practices are essential for keeping this gland and the entire oral cavity healthy.


The submandibular gland is an extraordinary organ that plays a crucial role in our overall health and well-being. From its function in producing saliva to its involvement in digestion and oral hygiene, this gland is an integral part of the human anatomy.

With its unique location and structure, the submandibular gland provides us with many fascinating facts to ponder. The ability to regenerate, the presence of salivary stones, and its involvement in certain medical conditions are just a few of the extraordinary aspects of this gland.

Understanding the submandibular gland and its functions can help us appreciate the complexity of the human body. So, the next time you think about your oral health, spare a thought for the remarkable submandibular gland!


1. Where is the submandibular gland located?

The submandibular gland is located underneath the lower jaw, on either side of the neck.

2. What is the function of the submandibular gland?

The primary function of the submandibular gland is to produce saliva, which aids in the digestion of food and maintains oral hygiene.

3. Can the submandibular gland regenerate?

Yes, the submandibular gland has the ability to regenerate, which is why it can recover from certain injuries or surgical procedures.

4. What are salivary stones, and how do they relate to the submandibular gland?

Salivary stones are small, hard deposits that can form in the ducts of the submandibular gland, leading to blockages and discomfort.

5. Are there any specific medical conditions associated with the submandibular gland?

Yes, certain conditions like sialadenitis (inflammation of the salivary gland), salivary gland tumors, and salivary gland duct strictures can affect the submandibular gland.

Exploring the fascinating world of the submandibular gland has undoubtedly piqued your curiosity about other intriguing aspects of human anatomy. If you found these facts captivating, wait until you discover the astonishing truths about mumps, a viral infection that directly affects the salivary glands. Prepare to be amazed as we uncover the mysteries surrounding this condition and its impact on oral health. Join us on this educational journey, where knowledge and understanding converge to create a truly enlightening experience.

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