The Unsung Heroes of Digestion: A Tour of the Intestines
Welcome back to our Tour of the Body series! We’re diving into the marvels of the intestines, those incredible organs that play a central role in our digestion and overall health. The intestines are divided into two main parts: the small intestine and the large intestines (aka the colon).
Who Does What?
The Small Intestine: This long (6-9 feet long!), winding tube with sea anemone-like projections called villi make nutrient absorption and digestion possible. Remarkably, the walls of the small intestine are only one cell thick, to allow for easy nutrient absorption. Because of this delicate barrier the small intestines rely heavily on mucus and beneficial bacteria for protection and immune support. In fact, 70% of our immune system resides in our intestines.
The Large Intestine (aka the colon): This upside-down-horseshoe-shaped tube is responsible for absorbing water and electrolytes from the remaining indigestible food matter, forming and storing stool, and housing a diverse community of bacteria that contribute to our health.
The Appendix: More Than Just a Vestigial Organ
Often thought of as a useless remnant, the appendix is now believed to play a role in maintaining gut health. It acts as a safe house for beneficial bacteria, repopulating the gut microbiome after digestive disturbances like diarrhea. Think of it like a benchwarmer, taken for granted until the star player needs the bench herself! This little organ is an important part of our immune system and overall gut health.
The Microbiome: Another World Within You
Our digestive tract as a whole, is home to about 100 trillion bacteria (more stars than in the Milky Way) collectively known as the microbiome. We have bacteria in our mouths, fewer in the stomach due to its acidity, and the small and large intestines each host distinct communities of bacteria. The small intestine has fewer bacteria due to its rapid transit time and strong digestive enzymes, while the large intestines is teeming with diverse bacterial species. These microbiomes aid in digestion, synthesizing essential vitamins and short chain fatty acids that protect us against harmful pathogens.
Gut Health Is Immune Health
Did you know that about 70% of our immune system actually resides in the gut? The intestines are not just about digestion; they are also a crucial part of our immune defense. The gut-associated lymphoid tissue (GALT) helps identify and combat pathogens, making the health of our intestines integral to our overall immune function.
Stay Tuned
Understanding the basics of our intestinal health opens the door to deeper exploration. Future posts will delve into topics like the intricate workings of the gut-brain axis, the impact of diet on the microbiome, and tips for maintaining a healthy gut. Stay tuned as we continue our journey thought the miraculous systems of the body!
Continue the Journey
Keep learning with me as we continue our “Tour of the Body” series. Subscribe below, add me to your contacts & follow me on social media for more engaging content on natural and energetic health. I’ll release a new body series post each week. I hope they inspire you to get to know your body and all its functions. I also invite you to ask me your questions on natural and energetic health.
