Answer:
The intestinal villi fulfill two functions: increase the surface of the intestine and improve the absorption of nutrients.
The greater the absorption surface, the better nourished the human being will be.
On the other hand, these hairs have a cylindrical epithelium with microvilli that are still responsible for improving absorption.
The intestinal epithelium is accompanied by an adjacent connective tissue rich in vessels that together make up the intestinal muscle.
In chron disease or celiac disease, the integrity of this mucosa is poor, which is why it does not meet the absorption of nutrients and people have strong symptoms of malnutrition or hypovitaminosis.
The similarity that it has with an absorbent napkin is the function, both the napkin and the intestine are absorber specialists for their micro and macro structures.
In the case of the napkin this presentation, microporosities and perforations that makes it more absorbent, similar to microvilli.
Step-by-step explanation:
In the intestine is where nutrients are most often absorbed, that is why they have a specialized epithelium for this.
It has adjacent fenestrated capillaries, semi-loose connective tissue to promote nutrient diffusion, and the macro and micro-velocities that are maintained by goblet cells that secrete mucus to lubricate / maintain this mucosa.