The Tongue Base: Unsung Hero of Our Mouth
Discover the vital roles of the tongue base in breathing and eating.
― 6 min read
Table of Contents
- The Tongue Base: What’s It Up To?
- Understanding Movement: The Science Behind It
- Time to Give the Tongue Base Attention
- The Study Setup
- Introducing the Tiny Crystals
- Breathing: What Happens to the Tongue Base?
- Chewing: A Tongue Exercise
- Swallowing: The Final Act
- Comparing the Tongue Body and Base
- The Importance of These Findings
- Conclusion
- Original Source
The tongue is not just a muscle for tasting and speaking; it's also a key player in Breathing, eating, and Swallowing. Surprisingly, the tongue is split into two parts: the tongue body and the tongue base. The tongue body is the part you see and use to speak, while the tongue base sits further back in your mouth, behind a little groove called the terminal sulcus. The tongue base and body are like two friends who hang out together but have different jobs to do.
The Tongue Base: What’s It Up To?
The tongue base has a very important job. It helps control what goes into your throat, like air when you breathe or food when you eat. It works closely with other parts of your throat to make sure everything goes to the right place-your lungs or your stomach. To do its job well, the tongue base needs to move in sync with the jaw, soft palate, and other muscles in the neck and throat.
Understanding Movement: The Science Behind It
To study how the tongue base moves, scientists use a method that involves tiny crystals. Think of them as little spies that record how the tongue stretches and contracts during various activities, like breathing and Chewing. The cool part? These crystals help measure changes in the tongue's size without needing to poke or prod it with any instruments.
When it comes to eating and drinking, the tongue body does most of the heavy lifting. It changes shape in a rhythmic pattern, almost like a well-choreographed dance. But up until now, the way the tongue base moves during these activities has been a mystery.
Time to Give the Tongue Base Attention
In recent studies, researchers decided it was high time to observe the tongue base in action, specifically during breathing and eating. They used young pigs for the experiment. It's not that they have a strong desire to hang out with pigs; rather, researchers find that pigs have similar mouth mechanics to humans. So, by studying them, we can learn more about ourselves.
The Study Setup
The scientists made sure the pigs were comfortable and happy. They were housed one per pen with plenty of food and some dark/light cycles to help them relax. A custom feeding table was set up, and the pigs were given some time to get used to their new surroundings.
To help the pigs get ready for the study, they were lightly sedated. This wasn’t anything too extreme-just enough to keep them calm during the experiments. Researchers then placed small electrodes on the tongue and throat muscles to monitor activity while the pigs did their thing.
Introducing the Tiny Crystals
The researchers implanted small SONO crystals into the tongue base. These crystals are pretty cool. They help measure changes in length, thickness, and width of the tongue as it moves. They were placed in specific patterns within the tongue base. Think of it like a treasure map where each mark indicates a different crystal.
Breathing: What Happens to the Tongue Base?
During breathing, the tongue base needs to stretch and contract in order to allow air to flow correctly. The researchers found that when the pigs inhaled, the tongue base elongated, especially in the front and bottom areas. It was like the tongue was saying, “Hey, let’s make room for that air!”
As the pigs exhaled, the tongue base would shorten again, almost like it was taking a little break. This back-and-forth movement was fast and repetitive. The timing of these movements was fascinating-the various parts of the tongue base wouldn’t all change at the same time. They had their own dance moves, which were coordinated but not synchronized.
Chewing: A Tongue Exercise
Next up, the researchers wanted to observe the tongue base while the pigs were chewing. Chewing is a tricky business that requires a lot of coordination among the jaw, tongue, and other muscles. The study revealed that when the pigs opened their mouths to chew, different parts of the tongue base stretched in different ways.
During jaw opening, the tongue base widened, and certain parts even thinned out. It was a bit like the tongue base was preparing itself for the next bite. As the pigs took a bite and started chewing, the tongue base quickly changed again, often shortening or contracting.
Interestingly, when chewing on one side of the mouth, the corresponding side of the tongue base showed more activity than the opposite side. This was a sign that the tongue base is smart-it knows when to work harder based on where the food is being chewed.
Swallowing: The Final Act
After all that chewing, it was time for swallowing. This is where things get really interesting. Swallowing requires a different set of movements. The research found that the tongue base behaves quite differently when swallowing compared to when it’s breathing or chewing.
When it was time to swallow, the tongue base would elongate again, but in a slightly different way. The back part of the tongue base would widen while the front part thickened. It’s almost as if the tongue was gearing up to push the food down the throat in a smooth and efficient manner.
It was noted that swallowing events occurred in a sort of pause after chewing. The pigs took a brief moment to chew, and then it was all about getting that food down the hatch. Each swallowing episode took about a second, making it quick but crucial.
Comparing the Tongue Body and Base
The researchers also spent some time comparing how the tongue base behaved versus the tongue body. They found that while both parts were active during these functions, their movements and timings were not identical. The tongue body would widen first during chewing, while the tongue base would change its thickness and length.
This difference is essential because it suggests that the tongue body and base work together but have specific roles, much like a dynamic duo in a buddy cop movie.
The Importance of These Findings
So why is all this research on the tongue base significant? Well, a better understanding of how the tongue base moves could lead to new insights into breathing and swallowing disorders that affect many people. Conditions like sleep apnea or problems with swallowing can be troublesome, and knowing the mechanics behind these movements may help experts develop better treatments.
Conclusion
In summary, the tongue base is a remarkable part of our anatomy that plays an important role in several critical functions. From breathing to eating, it showcases a fascinating range of movements. This research offers a glimpse into how these movements occur, and while it’s easy to think of the tongue as just a muscle for speaking, its deeper functions are just as vital.
So, the next time you take a deep breath or munch on your favorite snack, remember the hard work going on at the back of your mouth. The tongue base is not just quietly sitting there; it’s hard at work behind the scenes, making sure you can enjoy every bite and breathe easy.
Title: The Dynamics of Shape Changes in the Tongue Base during Respiration, Chewing and Swallowing
Abstract: This study aimed to analyze dimensional deformations of the tongue base during respiration, chewing, and swallowing. Eight 7-8-month-old Yucatan minipigs were used. Under deep sedation, eight 2mm ultrasonic piezoelectric (SONO) crystals were implanted in the tongue base forming a cubic-shaped configuration, representing right/left dorsal and ventral lengths, anterior/posterior dorsal and ventral widths, and right/left anterior and posterior thicknesses. Next, 8 pairs of electromyographic (EMG) microelectrodes were inserted into the tongue, jaw, hyoid, pharyngeal, and palatal muscles. SONO and EMG signals during respiration were recorded. Then, minipigs were allowed to wake-up for unrestrained feeding. The feeding sessions were recorded with synchronized EMG and videofluoroscopy to confirm the phases of jaw movement in chewing, and swallowing episodes. Amplitudes, durations, and timings for each dimension of the SONO crystal-circumscribed region were measured from the start of the jaw opening. Findings during respiration showed elongated lengths, anterior widths and anterior thickness (p
Authors: Doris Haydee Rosero Salazar, Amy Ly, Yikang Dong, Alexander Veasna Simnhoung, Zi-Jun Liu
Last Update: 2024-12-10 00:00:00
Language: English
Source URL: https://www.biorxiv.org/content/10.1101/2024.12.04.626865
Source PDF: https://www.biorxiv.org/content/10.1101/2024.12.04.626865.full.pdf
Licence: https://creativecommons.org/licenses/by/4.0/
Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.
Thank you to biorxiv for use of its open access interoperability.