Digestive system educations video for childrens, Human Body education for Kids and How Body Work.
There are four essential aspects to absorbtion:
1) physical movement of the nutrient molecules from gut lumen to the wall of the gut tube.
2) maximizing the area of the epithelial cells across which absorbtion can occur.
3) mechanism for transport of the nutrient molecule across the cell membrane into the epithelial cell cytoplasm.
4) transport of the nutrient molecule out of the epitheali cell into the extracellular body fluids. The mammalian small intestine is highly specialized for digestion and especially absorbtion . The mammalian small intestine is higly specialized for digestion and especially aabsorbtion.
Villi and microvilli increases absorbtive surface of small intestine. Each villus containt of lacteal, which is a terminal branch of the lymphatic system and is a terminal branch of the lymphatic system and is an important route for reabsorbtion of lipids and water. The surface of microvilli is covered with a meshwork of mucopolysaccharide and glycoprotein filaments, the glycocalyx.
This surface coat is extremely resistant to proteolytic and mucolytic agents, hence forms a protective surface.
Hunger drive is controlled by hypothalamus. Glucostatic thery of hunger suggests that an increase in blood glucose level increases the activity of the safety center and decreases the activity of hunger center. Low blood glucose has the opposite effects. Aminoacid levels and lipid levels have also been suggested to influence hunger and satiety. The hepotostatic theory of hunger control argues for a role of liver as an important sensor and modulator of the body energy stores. digestion
General anatomy of digestive system. Ozofagus 1/3 is striated muscle, 2/3 is smooth muscle. Small intestine: duodenum, jejenum, ileum. The end of ileum is appendix (secum in horse) in human. Large intestine: colon, rectum, anus. the structure of digestive tract. Muscularis mucosa, mucus layer, submucosa. Plexus myentericus. In the large intestine, longitiudial muscles concentrated circular muscle n large intestine produce haustra formation. The length of digestive tract depends on type of food ingested by animals. Longest in herbivours, shorter in carnivores.
Yandaki tabloda insan vucuduna ait sindirim sistemi ve sindirim sistemine ait organların, elemanların yerlerini ve Latince isimlerini gösteren diagrami görebilirsiniz. Egitici amaçlarda kullanılması için eklenmiştir. İnsanlık medeniyeti yakalamak istiyorsa ilk olarak kendi vucudünü tam olarak anlayarak ve ne oldugu iyi bilerek bunu başaracaktır.