Friday, 15th January 2021
Good morning. It’s Friday!
And here is the Cibeles fountain. A fountain loved by fans of the Real Madrid. Cibeles is the Greek goddess of agriculture, of the fertility of the earth. I hope she helps the farmers because they are having a lot of snow problems.
NATURAL SCIENCE
I attach two pictures below to understand better the process of digestion of food.
Foods and liquids that we have, have different textures and types of hardness. In order for our body to absorb the necessary nutrients to live, food is crushed at three different times in our digestive system:
- The first moment is in the mouth when the teeth cut and crush the food forming the "bolus".
- The second moment is in the stomach. Gastric juices further undo the bolus to facilitate the digestion of this porridge (papilla) through the intestines. Thus the bolus becomes a mush (papilla)called “chyme”.
- In the intestines the chyme is crushed for the last time by intestinal juices and the bilis to facilitate the absorption of nutrients by the blood through the intestinal walls. This last super porridge is called“chyle”.
What is not absorbed into the blood because it is useless is eliminated through the anus. That material is called faeces.