ANATOMY OF THE LOWER DIGESTIVE SYSTEM AND ITS RELATIONSHIP WITH FISTING

1. Development of the lower digestive system

In the fetal stage, the anus and genitals form a unique structure called the cloaca.

LATER, AS THE WEEKS PASS, THE ANUS AND GENITALS SEPARATE

During the first weeks of gestation, all mammals were female, until the male genes and chromosomes are activated, and those primitive female genitals evolve into male genitals.

2. Anus and sphincters

The anus is lined with STRATIFIED SQUAMOUS CELLS. Upon entry, you find the anal sphincters (internal and external), muscles that control continence, and you encounter them when you insert the first two phalanges of your fingers. When you achieve fisting and insert your entire hand, these two rings feel like a cuff surrounding the wrist of the person being fisted.

3. Dentate zone and hemorrhoids

The dentate zone, or pectineal line, is prone to forming hemorrhoids due to its rich vascularization. Careful training avoids injuries and complications. Therefore, after a fisting session, it is essential to take a cold water sitz bath, even using water with floating ice. Vasoconstriction protects against hemorrhoids.

4. Rectum

The rectum, covered by SIMPLE COLUMNAR CELLS, is a muscular bag that shapes the feces for expulsion. In fisting, when you pass through the sphincters, the fist becomes trapped here with a sensation of a glove.

5. Sigmoid colon

The sigmoid colon, with SIMPLE COLUMNAR CELLS WITH MICROVILLI, decomposes material. If a man penetrates you, ejaculates, and his semen reaches this point, the columnar cells will break it down into water and nutrients for absorption. In fisting, this is equivalent to inserting your hand up to the middle of your forearm.

6. Descending colon

The descending colon, with SIMPLE COLUMNAR CELLS, transforms decomposing food into chyme, extracting electrolytes such as SODIUM, POTASSIUM, AND CHLORINE. In extreme fisting, the hand reaches up to this point (elbow level).

7. Transverse and ascending colon

The transverse colon crosses the abdomen, below your left lower rib, passing behind the liver, and below your right last rib, until the ascending colon, which connects with the ileocecal valve, the transition between the small and large intestine. (You can palpate the ileocecal valve by lying on your back and touching 2 cm next to the top of the bone of your right hip)

Throughout the intestine, there are multiple cells that we must care for and protect.

The goblet cells, present in the rectum and colon, secrete mucus that lubricates and protects the intestinal mucosa, facilitating the passage of feces and reducing friction during fisting.

Enterocytes perform multiple absorption functions but also produce serotonin (which is why those who suffer from irritable colon also suffer from anxiety and/or depression)

Note: Fisting requires extreme caution to avoid trauma, perforatio...